ورقة عمل القيم المخبرية والشوارد مع الإجابات

What is a typical reference range for the hematocrit in an adult woman?

1. AAbout 55–65%
2. BAbout 10–15%
3. CAbout 35–45%
4. DAbout 20–28%

In a healthy adult, the CSF glucose is usually about what proportion of the blood glucose?

1. AAbout double (200%)
2. BAbout two-thirds (60%)
3. CAbout one tenth (10%)
4. DExactly the same (100%)

Thrombocytopenia is usually defined as a platelet count below:

1. A150 × 10³/µL (150 × 10⁹/L)
2. B1,000 × 10³/µL (1,000 × 10⁹/L)
3. C15 × 10³/µL (15 × 10⁹/L)
4. D450 × 10³/µL (450 × 10⁹/L)

A patient has a hot, swollen big toe. The serum uric acid is normal. Which statement is correct?

1. AGout is certain, as a normal urate proves the diagnosis
2. BGout can only be diagnosed with a CT scan of the foot
3. CGout is ruled out, as uric acid is always high in an attack
4. DGout is still possible, as urate can be normal in an attack

Two sets of blood cultures are ordered for a patient with suspected sepsis. How are they best collected?

1. AFrom the existing IV line while the infusion continues to run
2. BFrom two separate venipuncture sites, using strict aseptic technique
3. CBoth from the same site, one minute apart, to save time for the patient
4. DAfter the first antibiotic dose, so the infusion is not delayed

The heparin infusion rate was changed according to protocol. When is the aPTT usually rechecked?

1. AOnly after the infusion is stopped
2. BAbout 3 days after the change
3. CAbout 6 hours after the change
4. DAbout 30 minutes after the change

A child with sickle cell disease and a recent viral illness is pale and tired. The hemoglobin has fallen sharply, and the reticulocyte count is very low. What is the most likely problem?

1. AAn aplastic crisis, often caused by parvovirus B19
2. BA normal finding in sickle cell disease
3. CIron deficiency from a poor diet over months
4. DA vaso-occlusive pain crisis in the bones

Which set of results best shows that diabetic ketoacidosis is resolving?

1. AA closing anion gap with a rising bicarbonate and pH
2. BA rising potassium with a falling bicarbonate
3. CA falling glucose with a still widening anion gap
4. DA falling glucose with a falling serum bicarbonate