Робочий аркуш «Лабораторні показники та електроліти» з відповідями

About what proportion of total serum calcium is in the free (ionized) form?

1. AAbout one tenth
2. BAlmost none
3. CAbout half
4. DNearly all

Which type of white blood cell is normally the most numerous in an adult's blood?

1. AEosinophils
2. BMonocytes
3. CNeutrophils
4. DLymphocytes

What does the term pancytopenia mean?

1. AHigh white cells with low platelets
2. BHigh red cells, white cells and platelets
3. CLow red cells with normal platelets
4. DLow red cells, white cells and platelets

On the first day after major surgery, a patient's white cell count is 12,5 × 10³/µL, with no fever or wound signs. What is the best interpretation?

1. AA sign of leukemia that needs bone marrow testing
2. BDefinite wound infection that needs antibiotics now
3. CA laboratory error, since surgery lowers white cells
4. DA common stress response to surgery that is monitored

A patient on levothyroxine has palpitations, weight loss and a TSH of 0,05 mIU/L. What is the most likely explanation?

1. AThe patient has stopped the drug
2. BThe levothyroxine dose is too high
3. CThe thyroid is now completely normal
4. DThe levothyroxine dose is too low

A patient without symptoms has a fasting plasma glucose of 132 mg/dL (7,3 mmol/L) on Monday and 138 mg/dL (7,7 mmol/L) on Thursday. What does this show?

1. AThe results show prediabetes only
2. BThe results are within the normal fasting range
3. CThe results show reactive hypoglycemia
4. DThe results meet the criteria for diabetes

A patient admitted with heavy alcohol use and malnutrition has a glucose of 52 mg/dL (2,9 mmol/L) and low magnesium. Which prescribed treatment should be given before the IV glucose?

1. AIV insulin
2. BIV potassium
3. CIV thiamine
4. DOral iron

An 82-year-old woman without a catheter has a urine culture growing bacteria, but no fever, urinary symptoms or change in mental state. What is the best interpretation?

1. APyelonephritis, which needs admission and IV fluids today
2. BA urinary tract infection that needs urgent IV antibiotics
3. CContamination, so the culture must be repeated every week
4. DAsymptomatic bacteriuria, usually not treated with antibiotics