What is another name for the copper reduction test?
Three glucose-oxidase (Diastix) and two copper-reduction (Clinitest) urine tests for glucose were compared to determine the differences in accuracy for various concentrations of glucose.
What is Clinitest used to test for?
Clinitest tablets are used to test how much sugar (glucose) there is in a person’s urine. Poisoning occurs from swallowing these tablets.
What is copper reduction test?
The classic Benedict’s copper reduction reaction was an early method used to detect glucose in urine. The test is based on the principle that substances that reduce copper sulfate to cuprous oxide in the presence of alkali and heat will produce a color change, which confirms the presence of glucose.
What is SSA urine test?
The sulfosalicylic acid (SSA) test measures urine turbidity when a small amount of aspirin is added to the urine specimen. A finding of +2 to +4 suggests bacteriuria.
What is C in Covid test?
If a control line (C) is visible (regardless of how faint it is) and a test line (T) is not visible, this means that the result is negative. It is unlikely that you have COVID‑19. However, even if your test is negative, continue to observe all hygiene and safety measures.
Which of the following is the primary reagent in the copper reduction tablet?
Cards
| Term Urnialysis: Pre-analytical Examination. After recieving a 24 hour urine for quantitative total protein analysis, the technician must first: | Definition measure the total volume |
|---|---|
| Term Which of the following is the primary reagent in the copper reductrion tablet | Definition copper sulfate |
What is a reducing substance?
1. Definition. Reducing substances comprise all the sugars exhibiting ketonic and aldehydic functions and are determined by their reducing action on an alkaline solution of a copper salt. 2.
What causes false positive protein in urine?
Alkaline, dilute or concentrated urine; gross hematuria; and the presence of mucus, semen or white blood cells can cause a dipstick urinalysis to be falsely positive for protein.
What is sulfosalicylic acid test?
The sulfosalicylic acid test detects albumin, globulins and Bence-Jones proteins at low concentrations. The sulfosalicylic acid test is the differential screening urine protein test for monoclonal light chain diseases i.e. multiple myeloma or pancreatic transplants with anastomosis.
What does R and C mean on pregnancy test?
1 POSITIVE: The instrument will automatically determine if the Test (T) region intensity is equal to or more intense than a 25 mIU/mL urine sample and confirm that the Control (C) and Reference (R) regions meet minimum intensity specifications. 2 BORDERLINE: Result is indeterminate, repeat in 48–72 hours.
What does the CR and T mean on a pregnancy test?
The control line is designed to validate the test and should be crisp and clear in intensity against the white background. Positive Result: POSSIBLE PREGNANCY. Distinct and consistent color bands appear on the Control (C) and Test (T) regions.
What causes colour change in Benedict’s test?
When Benedict’s solution and simple carbohydrates are heated, the solution changes to orange red/ brick red. This reaction is caused by the reducing property of simple carbohydrates. The copper (II) ions in the Benedict’s solution are reduced to Copper (I) ions, which causes the color change.
What are reducing substances examples?
Sugars (e.g, glucose, galactose, fructose, maltose, lactose, and pentose) are characterized as reducing substances based on their ability to reduce cupric ions to cuprous ions.
How do you test for glucose with copper reduction reaction?
Copper Reduction Reaction. The classic Benedict’s copper reduction reaction was an early method used to detect glucose in urine. The test is based on the principle that substances that reduce copper sulfate to cuprous oxide in the presence of alkali and heat will produce a color change, which confirms the presence of glucose.
What is the Benedict’s Copper reduction reaction?
Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online. The classic Benedict’s copper reduction reaction was an early method used to detect glucose in urine.
How are tablets used to detect reducing substances in urine?
Current tablet methods use the classic Benedict’s copper reduction principle to detect reducing substances in urine. The method that is commercially available requires considerably less tech time and is less prone to error.
Does Benedict’s reduction test work on glucose?
COPPER REDUCTION METHODS When urine is boiled in Benedict’s qualitative solution, blue alkaline copper sulphate is reduced to red-brown cuprous oxide if a reducing agent is present (Figure 820.1). The extent of reduction depends on the concentration of the reducing substance. This test, however, is not specific for glucose.