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Stool occult blood test procedure Nursing

Fecal Occult Blood Test - RNpedi

  1. ary blood studies suggest GI bleeding
  2. Take a sample of your stool with one end of an applicator stick. Apply a thin smear of stool inside the square marked A on the Hemoccult slide (see Figure 1). Use the stick to collect a second sample from a different part of your stool. Apply a thin smear of stool inside the square marked B
  3. How to Do a Fecal Occult Blood Test (FOBT) 3/4. smear of stool inside the square marked A on the Hemoccult slide (see Figure 1). 5. Use the stick to collect a second sample from a different part of your stool. Apply a thin smear of stool inside the square marked B. 6. Throw out the stick in the trash

How to Do a Fecal Occult Blood Test (FOBT) Memorial

  1. The fecal occult blood test (FOBT) is a lab test used to check stool samples for hidden (occult) blood. Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum — though not all cancers or polyps bleed
  2. The Hemoccult SENSA test is a qualitative method for detecting fecal occult blood. The test is based on the oxidation of guaiac by hydrogen peroxide to a blue-colored compound
  3. The most common test done on a stool is called fecal occult blood test (FOBT) wherein it can detect traces of blood in the feces. Feces is a solid body waste discharged from the large intestine through the anus by the process of defecation. It is made of cellulose and other indigestible food matter, water, and bacteria
  4. Fecal Occult Blood Test : Methods, Principle, Procedure, Clinical Significance and Interpretation The fecal occult blood test (FOBT) is a simple, inexpensive and most frequently performed chemical screening test on feces. It is done for the detection of blood in the stool that is not visible on gross inspection

How to Do a Fecal Occult Blood Test (FOBT

  1. A test for fecal occult blood looks for blood in your poop, or feces. It can be a sign of a problem in your digestive system, such as a growth, or polyp, or cancer in the colon or rectum. -WebMD FOBT uses a chemical reaction to check for a protein found in red blood cells
  2. Stools specimen are often tested for blood. Guaiac or HemOccult test may be done in the laboratory but are sometimes done at the nursing station to test a stool for occult blood
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Fecal occult blood test - Mayo Clini

  1. Fecal occult blood testing is done by collecting two small portions of the patient's stool and placing them on a commercially prepared slide. A drop of reagent liquid is then placed on the slide. The test is positive for occult hidden blood when the slide turns blue within 60 seconds
  2. Procedure of Occult Blood Test (Chemical Method): Dispense about 7 ml of distilled water into a wide bore test tube. Add a sample of feces about 10-15 mm in diameter (taken from various parts of the specimen). Using a glass or plastic rod, emulsify the feces in the water. Allow the fecal particle to settle or centrifuge the emulsified specimen
  3. Avoiding contact with urine, pass stool directly into the stool cup OR pass stool into a large clean container (such as a cut out milk jug) OR onto a newspaper placed under the seat of the toilet. Transfer entire specimen into the stool cup using the tongue depressor provided or other handy implement (such as a plastic spoon)
  4. 2. Place hat on the rim of the toilet and pass stool into the hat. 3. Open the front flap of the hemoccult card. 4. Using the sticks provided, select a portion of the stool and apply it to one of the test areas on the card. Using another stick, select another portion of the stool and apply it to the other test area on the card. 5
  5. The fecal occult blood test requires the collection of 3 small stool samples. Usually the samples are a bit of stool collected on the end of an applicator. The stool samples should be taken one day..

What is a fecal occult blood test? A fecal occult blood test (FOBT) looks at a sample of your stool (feces) to check for blood. Occult blood means that you can't see it with the naked eye. Blood in the stool means there is likely some kind of bleeding in the digestive tract • Written test . Test Order . A physician's order, standard protocol, or order by other health professionals authorized to request . laboratory tests is required for fecal occult blood testing. Reagents and Storage . Slides and Developer are stable until the manufacturer's expiration date and are to be dated when opened. 1

Procedure - Point-of-Car

Colorectal cancer (CRC) is the second leading cause of cancer-related death in the United States.1Recommended screening tests that have been proven cost-effective include fecal occult blood testing (FOBT), flexible sigmoidoscopy, colonoscopy, and double-contrast barium enema.2-4Although lower endoscopy is receiving growing attention, FOBT is the screening modality most often recommended by physicians and most preferred by patients.5, A fecal occult blood test uses chemicals to find out if there is blood in a sample of feces. If your test is negative, your result is normal. If your test is positive, you had blood from your digestive tract in your stool sample. Additional testing, such as a colonoscopy, can help find out the location, cause, and extent of the bleeding Performing Fecal Occult Blood Testing. Select a Skill: » Collecting a Midstream Urine Specimen. » Performing Fecal Occult Blood Testing. » Performing Gastric Occult Blood Testing. » Collecting a Sputum Specimen. » Collecting a Specimen for Wound Culture. » Performing Blood Glucose Testing. » Screening Urine for Chemical Properties A video tutorial for completing the Fecal Occult Blood Test, or FOBT. Useful for anyone who is concerned about colon cancer, and wants to get screened. Produ..

Fecal Analysis (Stool Analysis) Nursing Responsibilities

Stool test - inspection of stool, having a black, tarry appearance; analysis of the sample to for fecal occult blood test to determine any GI bleeding Blood tests - complete blood count (CBC) may reveal a low hemoglobin count; hematinics or iron studies may show low iron levels; biochemistry, may show poor liver function and kidney function If the test is positive (i.e., hidden blood is found), a follow-up colonoscopy is scheduled. [12] See Figure 16.10 [13] for an image of a typical card used to collect the stool smear for the test after a special solution has been applied. The blue color indicates a positive result for occult blood. Figure 16.10 Guaiac Test

2. Transfer stool specimen to stool cup and send to the Laboratory. within 2 hours of collection, refrigerate if > than 2 hours. NOTE: If using wooden applicator stick to transfer stool, do not. leave stick in stool container; specimen will dry out. D. Occult Blood. Transfer stool specimen to stool cup. Transport to lab Identify occult blood in stools (this requires a different procedure) Source: adapted from Dougherty and Lister, 2015 Collection of a faecal specimen should be considered as part of a holistic nursing assessment, and patients with diarrhoea should be assessed for associated symptoms of fever, vomiting and abdominal pain

Read about the fecal occult blood test (FOBT), of which there are two types: chemical and immunologic. Fecal occult blood tests are used to screen for colon cancer and colon polyps. This article explains fecal occult blood test false positives, test instructions, and procedure Occult Blood Stool Test Cards ­ Patient Instructions The occult blood stool test is an important part of your exam. This test checks for blood in your stool. Please follow these instructions carefully. You may have to make some diet and medication chang es before you start collecting your samples.. LO 15.3 Describe the waived procedure to test for fecal occult blood. Notes: Fecal occult blood . is blood that is found in the feces/stool and may not be visible (therefore occult). Guaiac. is a chemical that turns blue when blood (hemoglobin) is present. Several portions of the stool sample are usually processed in order to maximize blood.

Fecal Occult Blood Test : Methods, Principle, Procedure

Fecal Occult Blood Test Kit Distribution . Following either the computerized or nurse-based instructions above, all patients were given a Hemoccult II Sensa serial test kit that contained 3 guaiac-impregnated paper cards, each with 2 windows for sample application When blood is present in the stool but cannot be seen without the use of a microscope, it is referred to as occult or hidden. A hemoccult test detects occult blood in feces. b. Important Points. (1) Do not confuse hemorrhoidal bleeding with upper gastrointestinal bleeding. (2) Meat-free diet may be ordered 3 days before the test PROCEDURE MANUAL _____ Hemosure® iFOB Test Page 3 of 9 Principle: Hemosure® One Step Immunological Fecal Occult Blood Test is a qualitative, sandwich dye conjugate immunoassay and employs a unique combination of monoclonal and polyclonal antibodies to selectivel A fecal occult blood test is not used for diagnosis, but for screening purposes. Because several other situations can lead to blood in the stool, a positive FOBT does not necessarily mean that cancer is present. Hemorrhoids, anal fissures, constipation or inflammatory bowel disease can also cause blood in the stool bleeding. This may result in a false positive test result. 3. With any occult blood test, Sure-VueTM Signature Immunochemical Fecal Occult Blood (iFOBT) may not be considered as a conclusive diagnostic for gastrointestinal bleeding or pathology. The test results can only be regarded as a preliminary screening or as an aid to diagnosis

STOOL IS COLLECTED to determine the presence of blood, ova and parasites, bile, fat, pathogens, or substances such as ingested drugs. Additional studies include fecal urobilinogen, nitrogen, Clostridium difficile, fecal leukocytes, calculation of stool osmolar gap, food residues, and other substances requiring lab evaluation.Gross examination of stool characteristics, such as color. Michel I. Kafrouni, John H. Kwon, in Early Diagnosis and Treatment of Cancer Series: Colorectal Cancer, 2011 Types of Fecal Occult Blood Tests. The most commonly used FOBT is the guaiac-based test (g-FOBT). Guaiac is a natural resin extracted from the wood of the Guaiacum officinale plant. The basis of the test depends on the presence of the heme moiety from the hemoglobin that helps hydrogen.

Nursing Test Question: Fecal Occult Blood Test - Med Made

- Some stool specimens must be taken to lab within 30 minutes of collection - Some specimens are repeated. e.g. 3 days - Some are obtained with tongue depressor and smeared on medium - Others are collected in sterile container Tests done: C & S, Occult blood, Ova and parasites Blood - Specially trained personnel for venipuncture and arterial. Fecal Occult Blood Test. This test looks for occult (hidden) blood in the stool. A fecal occult blood test involves the following steps: You will receive three small cards. Place a sample from three consecutive bowel movements on each card. A small amount of the stool is placed on a special test strip. The stool is analyzed for traces of blood The Fecal Immunochemical Test (FIT) is a newer version of the fecal occult blood test (FOBT) that detects minute traces of blood in the stool. This colon cancer test: Requires no special prep, changes to your diet or medicines. Detecting blood in your stool is important because it can be a sign of precancerous polyps or colon cancer

Screening with a fecal occult blood test (FOBT) has reduced colorectal cancer mortality by 15%-35% in randomized controlled trials ( 1 - 3).As a result, the U.S. Preventive Services Task Force ( 4) has endorsed annual FOBT in all persons aged 50 years or older, and Medicare ( 5) recently agreed to reimburse for annual screening FOBT The test is focused on phenolic compound oxidation from guaiac to quinones, which results in the appearance of blue color when the stool specimen containing blood is placed in the test card. Indication: Bowel elimination can be impaired by procedures such as anesthesia, immobility, drugs, and restrictive diets. Pre and post nursing interventions Fecal occult blood test is also known as stool occult blood test, hemoccult test, guiaic smear test, gFOBT, or occult blood test. Fecal occult blood is detected by microscopic analysis or by chemical tests for hemoglobin, such as the guiaic test Fecal Occult Blood Tests Fecal occult blood tests help to determine the presence of occult blood (hidden GI bleeding) and to distinguish between true melena and melena-like stools. Certain medications, such as iron supplements and bismuth compounds, can darken stools so that they resemble melena. The guaiac fecal occult blood test Hemoccult SENSA has greate

Specimen Collection & Procedures: A Nurse's Guid

The faecal occult blood test, or stool occult blood test is done in order to check the sample of stool for the presence of blood. Occult blood refers to blood which cannot be seen by the naked eye and may be present in normal-coloured stool. The blood in the stool is usually discharged as a result of the slow bleeding in the gastrointestinal. The QuickVue iFOB (immunochemical Fecal Occult Blood) Test detects the presence of blood in stool specimens. Blood in stool is an indication of a number of gastrointestinal disorders, including colorectal cancer. The QuickVue iFOB Test requires only one specimen, and because it is specific to human hemoglobin, patients are not required to.

Nursing SKill - Stool specimen ati - ACTIVE LEARNING

Fecal Occult Blood Testing with a Smear Test. A fecal occult blood test (FOBT) checks for blood that may be hidden in a patient's stool. The source of the blood can be anywhere along the gastrointestinal (GI tract), from stomach ulcers to colon cancer.Although blood in the stool is not always cause for concern, persistent or unexplainable bleeding is oftentimes an early symptom of colon. The stool guaiac test or guaiac fecal occult blood test (gFOBT) is one of several methods that detects the presence of fecal occult blood (blood invisible in the feces). The test involves placing a fecal sample on guaiac paper (containing a phenolic compound, alpha-guaiaconic acid, extracted from the wood resin of Guaiacum trees) and applying hydrogen peroxide which, in the presence of blood. Fecal Occult Blood Test Definition. The fecal occult blood test (FOBT) is a rapid test for detecting the presence of blood hidden in the stool and caused by gastrointestinal bleeding.. Purpose. This test is performed to detect the presence of blood in the feces. It is also routinely used (in conjunction with a rectal examination performed by a physician) to screen for colorectal cancer. The prototypical fecal occult blood tests are guaiac based and take advantage of the fact that hemoglobin possesses pseudoperoxidase activity. Guaiac tests are more sensitive for detecting bleeding from the lower than from the upper gastrointestinal tract because hemoglobin is degraded in the gastrointestinal tract (Fig. 2).The likelihood that occult blood will be detected by a positive guaiac.

Diagnostic Tests: NCLEX-RN RegisteredNursing

Stool Specimen CollectionDefinitionStool specimen collection is the process of obtaining a sample of a patient's feces for diagnosic purposes.PurposeThis procedure is used to test for infectious organisms, mucus, fat, parasites, or blood in the stool.PrecautionsDepending on the proposed analysis of the feces, watery feces will not be suitable for conducting a test for any fat that may be. Distinguish Between Screening and Diagnostic Fecal Occult Blood Test Most payers will cover this service, but keep in mind there is a distinction between screening and diagnostic gFOBT & iFOBT. Only two tests qualify as screenings: The first of these is the Guaiac test (Blood, occult, by peroxidase activity (eg, guaiac), qualitative; feces, consecutive collected specimens with single. describe a multifactor assay (RNA-FIT test) that combines 8 stool-derived eukaryotic RNA biomarkers, patient demographic information (smoking status), and a fecal immunochemical test (FIT) to sensitively detect advanced colorectal neoplasias and other non-advanced adenomas in a 1,305-patient, average-risk, prospective cohort. This cohort was supplemented with a 22-patient retrospective cohort. guaiac [gwi´ak] a resin from certain Caribbean trees, used as a reagent. guaiac test one for occult blood; glacial acetic acid and guaiac are mixed with the specimen; on addition of hydrogen peroxide, the presence of blood is indicated by a blue tint. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition.

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Fecal Occult Blood Test (FOBT): Procedure, Results

Signs and symptoms of colon cancer may include diarrhea, constipation, narrowing of the stool, blood in the stool, abdominal pain, weakness, and weight loss. Screening for colon cancer may be accomplished with a fecal occult blood test, sigmoidoscopy, barium enema, or colonoscopy Randomly insert the threaded end of the sampler into the faecal specimen in at least five different places on the specimen. Insert sampling probe into the collection tube. Line up the cap with the tube and press to click shut. Shake tube vigorously to mix specimen in fluid. Place both sampler tubes (three tubes) into the plastic specimen bag.

guaiac/peroxidase-like reaction, which turns the test paper blue if occult blood is present. This reaction requires that the blood cells be hemolyzed. When blood is present, hemolysis is made possible by substances in the stool - primarily water and salts. CLINICAL SIGNIFICANCE: The Fecal Occult Blood test is recommended for use as a diagnostic. COLLECTION PROCEDURE OCCULT BLOOD, STOOL Dear Patient: You have been asked by your physician to collect a stool specimen. Please read and follow the instructions provided below. DIRECTIONS FOR HOME APPLICATION OF FECAL SMEARS TO SLIDES 1. Fill out the required information on the front flap of all three (3) slides. 2 For this test, a chemical called guaiac is used to detect blood in the stool. A doctor may obtain a stool sample for this test during a rectal examination by using a gloved finger. This sample is placed on a piece of filter paper infused with guaiac. A second liquid chemical (peroxidase) is added and the sample changes color if blood is present Gastroccult is a rapid screening test designed for detecting the presence of occult blood and determining pH of gastric aspirate or vomitus. The Gastroccult slide includes both a specially buffered guaiac test for occult blood and a pH test based on the principle that certain dyes change color with changes in hydrogen ion concentration

Occult blood in the stool has been measured since 1904 by the guaiac- peroxide reagent system. For the past 14 years, the guaiac slide test has replaced the old classical liquid procedure. The slide test utilizes the same chemical reaction to measure the blood, but differs from the old method in that the stool specimen is smeared on Bright red blood indicates the blood is fresh and that the site of bleeding is in the lower gastrointestinal tract. Black, tarry feces indicates the presence of old blood and that the site of bleeding is higher in the GI tract. Occult indicates blood is present in the stool but cannot be seen without a microscope. •Hemoccult test detects.

Collect urine and stool samples for occult blood testing. Patients at risk for bleeding such as those diagnosed with PUD may not show apparent signs and symptoms of bleeding, thus checking for the presence of blood in the stool or urine is an important nursing intervention. Start intravenous therapy as prescribed A fecal occult blood test (a Hemoccult® is a version of this test that can be done in your provider's office). Your healthcare provider may suggest only one of these tests, or do several of them together to try and discover the cause of your rectal bleeding A faecal occult blood test is also conducted. This is to ensure that the non-visible bleeding is also tracked down. Gut infections and other disorders of the gut too can be the reason for the rectal bleeding. This test can detect the blood that cannot be seen, and suggested when there is abdominal pain, and weight loss For fresh blood to turn into Melena, the bleeding has got to come from the stomach, duodenum, or the small intestines better referred to as the upper gastrointestinal tract. Occult bleeding is so subtle that you will not notice that you have rectal bleeding. It is diagnosed using a stool test to check for the presence of blood A fecal occult blood test checks a bowel movement (stool) sample for blood that can't be seen with the naked eye. Blood in the stool is a sign of bleeding in the digestive tract. This could indicate cancer, polyps, hemorrhoids, diverticulosis, or inflammatory bowel disease

Stool Specimen Collection Carteret Health Car

PATIENT INSTRUCTIONS for Collection of Occult Blood (Guaiac) Patient Preparation: 1. Beginning 3 days before and during the stool collection period, eat a well-balanced diet including fiber such as bran cereals, fruits, and vegetables. 2. For 3 days before and during the stool collection period, the following foods should be avoided Fecal Occult Blood Test Definition. A fecal occult blood test (FOBT) looks for blood in the stool. Reasons for Test. The test is done to screen for colon and rectal cancers. It may also be done to look for causes of belly pain, diarrhea, vomiting, or lack of hunger So, for fecal-occult screening tests, Medicare has its own code, G0107, Colorectal cancer screening; fecal-occult blood test, 1-3 simultaneous determinations, which is reimbursed once. Stool tests. A stool test is the analysis of a sample of stool. Your doctor will give you a container for catching and storing the stool. You will receive instructions on where to send or take the kit for analysis. Stool tests can show occult bleeding. Blood tests Collection procedure. Step 1 Obtain a faeces occult blood sampling bottle from a Sullivan Nicolaides Pathology collection centre. (Other containers are not acceptable for this test.) Step 2 Place a clean receptacle or toliet liner into the toilet bowl and use this to catch your faeces. Note: If using a toilet liner, these are biodegradable and.

The fecal occult blood test (FOBT) is used to find blood in the feces, or stool. Blood in the stool may be a sign of colorectal cancer or other problems, such as ulcers or polyps. These are growths that develop on the inner wall of the colon and rectum. Types of fecal occult blood tests. Currently, there are 2 types of FOBTs: Guaiac-based FOBT A fecal occult blood test checks for hidden (occult) blood in the stool. It involves placing a very small amount of stool on a special card. The stool is then tested in the healthcare provider's office or sent to a lab. Stool culture. A stool culture checks for the presence of abnormal bacteria in the digestive tract that may cause diarrhea and.

A faecal occult blood test (FOBT) can detect minimal amounts of blood in your bowel motions. The test involves taking samples from two or three bowel motions using a test kit. These are analysed at a pathology laboratory, and if blood is detected, further tests may be required. The primary type of FOBT in Australia is immunochemical or iFOBT Fecal occult blood or fecal immunochemical test. This test checks for hidden (occult) blood in the stool. A very small amount of stool is placed on a special card. The stool is then tested in the healthcare provider's office or sent to a lab. Stool culture. This test checks for abnormal bacteria in the digestive tract that may cause diarrhea.

Blood in the stool could suggest that something is wrong in your digestive tract. There could be a possibility of bleeding in the GI tract. Most of the time, the amount of blood is small that it can easily be detected on fecal occult test. If the bleeding is in large amount, then it could suggest a serious problem and warrants immediate medical. Epic-Cerner Lab Test Crosswalk CLIENT RESOURCES: Boone Hospital Center Laboratory Contact Information Supply Order Requests Courier Requests- LabExpress OUTPATIENT COLLECTION INFORMATION: Outpatient Stool Collection Instructions NURSING RESOURCES: Laboratory Nursing Procedure. Blood Product Information. Test Tube Color Selection Guid The nurse is providing instructions to a client who will collect a stool specimen for an occult blood test. The nurse instructs the client that it is best to avoid which food for 3 days before collection of the stool specimen? 1. Turnips 2. Hard cheese 3. Milk products 4. Cottage chees

Flushable reagent stool blood test is an at-home test to detect hidden blood in the stool. Alternative Names. Stool occult blood test - flushable home test; Fecal occult blood test - flushable home test. How the Test is Performed. This test is performed at home with disposable pads. You can buy the pads at the drug store without a prescription A fecal occult blood test is considered negative if no blood is detected in your stool samples. If you have an average risk of colon cancer, your doctor may recommend repeating the test yearly. Positive result. A fecal occult blood test is considered positive if blood is detected in your stool samples HemaPrompt TM Fecal Occult Blood Testing Procedure. Principle of the TestBlood in the feces is often the first and only sign of colonic or rectal malignancy. The HemaPrompt test is based on the oxidation of phenolic compounds present in guaiac to quinones, resulting in the production of a blue color Guaiac fecal occult blood test (gFOBT or FOBT) - It checks for the heme part of hemoglobin from blood in the stool. The limitation of this test is that it can detect blood from any source, thereby causing false-positive test results. Some foods and medications can also interfere with this test. If you are going for FIT, then there are no.

Stool collection for occult blood - Samaritan Health Service

Fecal Analysis Synonym/acronym: N/A. Common use To assess for the presence of blood in the stool toward diagnosing gastrointestinal bleeding, cancer, inflammation, and infection. Specimen Stool. Normal findings (Method: Macroscopic examination, for appearance and color; microscopic examination, for cell count and presence of meat fibers;. A singe fecal occult blood test done in a doctor's office after a rectal exam has a sensitivity of approximately 5-7% for detecting colon cancer or advanced neoplasia (large polyps). This means that if 100 patients have colon cancer or large polyps, and a single guaiac test is done on all of them, then 93-95 of the patients will test negative The hemoccult blood test uses a chemical reaction to detect occult blood in your stool. The results for the hemoccult test are either positive or negative: A positive result means that occult. If a home fecal occult blood test detects blood in the stool it is recommended to see a health professional to arrange further testing. Colorectal cancer screening. An estimated 1-5% of large tested populations have a positive fecal occult blood test. [citation needed] Of those, about 2-10% have cancer, while 20-30% have adenomas

Blood in Stool Test (Fecal Occult Blood Test): Purpose

To test the stool for the presence of blood, a noninvasive test called the fecal occult blood test (FOBT) is performed. The test detects hidden (occult) blood in the stool — blood that cannot be seen by the naked eye. Blood may come from any part of the digestive tract, from the esophagus to the anal area The stool DNA test is a noninvasive test for adults 45 and older at average risk for colon cancer. Like the fecal occult blood test, the stool DNA Test detects microscopic amounts of blood in stool, but it also looks for certain DNA changes and mutations found in cancerous tumors or precancerous polyps Stool occult blood test. Fecal Occult Blood Test is designed to evaluate stool samples for hidden (occult) blood, meaning blood that cannot be seen with the naked eye. Although there are several possible causes of blood in the stool, one important cause is the presence of polyps or cancers in the digestive tract

Fecal Occult Blood Test (FOBT): MedlinePlus Medical Tes

Procedures/Professional Services (Temporary Codes) G0328 is a valid 2021 HCPCS code for Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous or just Fecal blood scrn immunoassay for short, used in Medical care Test Code: 182949. Specimen Type: Stool. Description: Occult Blood Fecal Test. A Fecal Occult Blood Test looks for the presence of microscopic or invisible blood in the stool . Blood in the stool can be a sign of a number of conditions such as. Abnormal growths or polyps in the colon. Cancer in the colon or rectum Also known as: Guaiac test, gFOBT, guaiac smear test Why it's performed: The fecal occult blood test (FOBT) looks for hidden or occult blood in the stool. Guaiac is used to coat the FOBT test cards. It creates a chemical reaction with stool if blood is present. This test can't determine if the blood is from your colon, rectum or other parts of your digestive tract Test Overview. A stool analysis is a series of tests done on a stool (feces) sample to help diagnose certain conditions affecting the digestive tract.These conditions can include infection (such as from parasites, viruses, or bacteria), poor nutrient absorption, or cancer.. For a stool analysis, a stool sample is collected in a clean container and then sent to the laboratory

Stool Occult Blood Negative - Stools ChairsMosby's Nursing Video Skills