Wartości laboratoryjne i elektrolity: karta pracy z odpowiedziami

Uric acid in the blood is a breakdown product of:

1. AGlucose
2. BHemoglobin
3. CPurines
4. DFats

Which blood test is the usual measure of a person's vitamin D status?

1. A25-hydroxyvitamin D
2. B1,25-dihydroxyvitamin D
3. CParathyroid hormone
4. DSerum phosphate

The prostate-specific antigen (PSA) test is used mainly in relation to which organ?

1. APancreas
2. BProstate gland
3. CPituitary gland
4. DThyroid gland

A patient with a potassium of 2,8 mEq/L has potassium chloride prescribed IV. Which statement about giving it is correct?

1. AIt is added to the IV bag without mixing, so it stays at the bottom
2. BIt is given as an undiluted bolus into a large vein to avoid irritation
3. CIt is always diluted and given by infusion pump, never as an IV push
4. DIt may be given as a slow IV push over one minute if the level is very low

Why must vitamin B₁₂ deficiency be ruled out before treating macrocytic anemia with folic acid alone?

1. AFolic acid causes iron overload when B₁₂ levels are low
2. BFolic acid makes B₁₂ deficiency anemia much worse within a few days
3. CFolic acid blocks the absorption of all B₁₂ from the diet
4. DFolic acid can fix the anemia while B₁₂-related nerve damage continues

A stable adult who is not bleeding receives one unit of packed red cells. By about how much is the hemoglobin expected to rise?

1. AAbout 5 g/dL (50 g/L)
2. BAbout 3 g/dL (30 g/L)
3. CAbout 1 g/dL (10 g/L)
4. DAbout 0,1 g/dL (1 g/L)

Two days after bowel surgery, a patient with nasogastric suction has a distended abdomen, absent bowel sounds and muscle weakness. The potassium is 2,8 mEq/L. Which interpretation is best?

1. AHypokalemia from gastric losses is contributing to paralytic ileus
2. BHyperkalemia from tissue damage is causing the bowel to stop
3. CThe potassium is normal for the second day after surgery
4. DThe low potassium is due to the patient drinking too much water

A patient on a stable dose of levothyroxine now has a TSH of 9,8 mIU/L. She recently started taking her calcium and iron supplements with her morning levothyroxine. What is the most likely explanation?

1. AThe supplements are reducing levothyroxine absorption
2. BThe TSH is low, showing that the dose is now too high
3. CThe result is normal for a person on levothyroxine therapy
4. DThe supplements are causing an overactive thyroid gland