A patient's urine specimen tested positive for bilirubin. Which of the following is most true?

Correct Answer: D

Rationale: Bilirubin is easily broken down by light, so all samples testing positive for bilirubin should be protected from light exposure. Storing the specimen in an area protected from light helps maintain the integrity of the bilirubin levels for accurate testing. Choice A is incorrect because the presence of bilirubin in urine does not necessarily indicate kidney disease. Choice B is incorrect as the exposure to light, not room temperature, affects bilirubin levels. Choice C is incorrect as the presence of bilirubin does not indicate the presence of bacteria in the specimen.

Correct Answer: A

Rationale: Specific gravity in urinalysis measures the concentration of solutes in urine compared to that of distilled water. This comparison helps in assessing the kidney's ability to concentrate urine properly. It is a valuable test even in dehydrated patients as it provides insights into renal function. Specific gravity can be measured using various methods, including a refractometer or reagent strips. Normal specific gravity readings of human urine typically range from 1.005 to 1.030. Choice A is correct as it accurately describes the purpose of specific gravity in urinalysis. Choices B and C are incorrect as specific gravity remains relevant in dehydrated patients and can be measured using different techniques, not solely a refractometer.

Correct Answer: C

Rationale: To confirm glucosuria, the most appropriate method is to run a Clinitest. Clinitest tablets are specifically designed to detect glucose in urine samples. This test is particularly useful when the urine is discolored, making it challenging to accurately assess the color change.\n Choice A, using a hand-held glucometer, is not the standard method for confirming glucose in urine; these devices are primarily used for blood glucose monitoring.\n Choice B, having another Medical Assistant perform a repeat dipstick test, may not provide a more definitive confirmation as dipstick tests can sometimes yield false positives or be less accurate compared to other methods like the Clinitest.\n Choice D, running an Acetest, is used to detect ketones in the urine, not glucose. Ketones are typically associated with conditions like diabetic ketoacidosis, which is different from glucosuria.

Correct Answer: D

Rationale: Luteinizing hormone (LH) is released by the pituitary gland to stimulate ovulation. One of the common reasons for monitoring LH levels is infertility. In women with infertility, LH levels are monitored to time intercourse accurately to maximize the chances of conception. Menorrhagia (choice A) is characterized by heavy menstrual bleeding and is not directly related to LH levels. Grave's Disease (choice B) is an autoimmune disorder affecting the thyroid gland and is not typically monitored by LH levels. Menopause (choice C) is a natural process marking the end of a woman's reproductive years and is not a condition where LH monitoring for infertility is common.

Correct Answer: D

Rationale: Manual hematocrits are performed to monitor anemia, which involves measuring the percentage of red blood cells in the blood. The process involves collecting blood in a microhematocrit tube, then centrifuging it to separate the plasma from the cells. By measuring the ratio of plasma to cells, healthcare providers can assess the patient's hematocrit level. Therefore, all the provided options are correct as they collectively describe the purpose and procedure of manual hematocrits.