2024 VTNE Laboratory Test 2 (ACTUAL TEST ) Questions and Answers (Solved)

2024 VTNE Laboratory Test 2 (ACTUAL TEST ) Questions and Answers (Solved) 1. What is the maximum time a fecal can be used for fecal flotation with zinc centrifugation to look for ova and parasites if kept in the refrigerator? Answer: 3 days Ideally, a fecal should be collected and performed within 24 hours. However, the maximum time that the feces can still be used if refrigerated is 3 days. Fresher is always better! 2. A hematocrit tube provides the means for evaluating a patients packed cellvolume and what other parameter? Answer: Total plasma protein Hematocrit tubes are used for two main purposes. One of these is to determine the packed cell volume (hematocrit) and the otheristo measure the total plasma protein. Another observation that is made with the hematocrit tubes is to note the color of the plasma.This can give an indication of lipemia, icterus, hemolysis, etc. 3. Electrolytes (potassium, sodium, chloride) are measured in what units? Answer: -mEq/L Electrolytes (potassium, sodium, chloride) are measured in milliequivalents per liter (mEq/L) 4. A purple top (or lavender top) is used to run which blood test? Answer: Completeblood count A purple top is used to collect blood for a CBC.The purple top contains the anticoagulant EDTA. 5. A dog with hypothyroidism comes in to have his blood drawn to check his thyroid level. He has been on Levothyroxine since he was first diagnosed. How many hours after the thyroid medication is given should the blood be drawn? Answer: 4-6 hours It is best to draw the blood 4-6 hours after medication is given because that is when the thyroid level is at its highest peak