Reagent strips - Study guides, Class notes & Summaries

IGCSE Biology Exam - Paper 6 Revision Notes BIO Enzyme activity lab: 2H2O2 (l) → 2H2O (l) + O2 (g) This reaction can be catalysed by an enzyme (catalase) or by a non- biological catalyst (Manganese IV oxide) 1. Put 3cm2 of hydrogen peroxide in a test tube. 2. Add fresh potato strips and shake gently. 3. Keep your thumb on top of the test tube, or use a stopper, to retain the gas. 4. Do the “glowing splint” test → the splint relights Positive control: repeat the original experime...

Describe the proper technique for performing reagent strip testing. - Answer •Strips have chemical pads on plastic strip •Compare the color change on pads w/in required time frame •Dip strip into well-mixed specimen at room temp •Remove excess urine on edge of cup •Blot edge of strip on absorbent pad •Wait req time •Read in good lighting List four causes of premature deterioration of reagent strips, and describe how to avoid them. - Answer •Moisture •Volatile chem...

How long does the RO have to be running before we perform any water testing? - ANSWER-15 minutes What does IFU stand for? - ANSWER-instructions for use ***Instructions written by the manufacturer that are approved by the FDA. How long does the sample valve need to be flushed after the RO has been running for 15 minutes before a sample is collected? - ANSWER-2 minutes What is the frequency for testing the Total Chlorine? - ANSWER-Before the first patient of the day is put on AND every...

Ciulla-AUBF Core Exam |Question and Answer| 100% Correct Why is the first-voided morning urine specimen the most desirable specimen for routine urinalysis? A. Most dilute specimen of the day and therefore any chemical compounds present will not exceed the detectability limits of the reagent strips B. Least likely to be contaminated with microorganisms because the bladder is a sterile environment C. Most likely to contain protein because the patient has been in the orthostatic positio...

What substance is normally found in urine that is principally responsible for its yellow coloration? -:- Urochrome In certain malignant disorders, what substance is found in the urine that turns the urine dark brown or black on exposure of the urine to air? -:- Melanin What is the expected pH range of a freshly voided urine specimen? -:- 4.5 to 8.0 Urine specimens should be analyzed as soon as possible after collection. If urine specimens are allowed to stand at room temperature f...

Troponin I is used frequently to assess acute myocardial infarctions (AMI). If a patient has experienced an AMI, at what point (approximately) will the troponin I begin to increase and how long will it stay increased? correct answers3-12 hours, 7-14 days The top image shows the microscopic appearance of yeast cells within a colony growing on cornmeal tween 80 agar. These same cells may also be observed in a tissue section (bottom image) taken from an area of inflammation. The tissue section i...

Urinalysis and Body Fluid Exam 1 Study Guide || With Questions & Answers (100% Verified) Urinalysis and Body Fluid Exam 1 Study Guide || With Questions & Answers (100% Verified) What does amber colored urine indicate? - ANSWER - bilirubin (liver failure) What does brown colored urine indicate? - ANSWER - methemoglobin What does blue/green colored urine indicate? - ANSWER - dyes, medications, pseudomonas UTI, hypercalcemia When would isosthenuria occur and why? - ANSWER - occurs in c...

Medical Assistant Certification Test Actual Questions and Answers 2024/2025 with complete solution Biohazard - answerAnything that is a risk to organisms, such as ionizing radiation or harmful bacteria or viruses Bloodborne Pathogens - answerPathogenic micro-organisms that are present in human blood and can cause disease in humans Catheter - answerA hollow, flexible tube that can be inserted into a vessel or cavity of the body to withdraw fluids Chain of Custody - answerThe chronologica...

Urinalysis and Body Fluids || Success Questions & Answers (100% Correct) Urinalysis and Body Fluids || Success Questions & Answers (100% Correct) Why is the first-voided morning urine specimen the most desirable specimen for routine urinalysis? A. Most dilute specimen of the day and therefore any chemical compounds present will not exceed the detectability limits of the reagent strips B. Least likely to be contaminated with microorganisms because the bladder is a sterile environment C. Mo...

BOC study guide 2022 with complete solution Give some examples of situations in which urine could have the following abnormal colorations a) red b) dark yellow/amber a) red: most commonly caused by blood; additional causes may be red blood cells, hemoglobin, myoglobin caused by muscle trauma b) dark yellow/amber: dehydration, infection, fever, or liver problems like hepatitis List the possible urine component associated with each of the following a) reagent strips that use sodium ...