Lab values & electrolytes worksheet with answers

What is a typical adult reference range for serum albumin?

1. AAbout 3.5–5.0 g/dL (35–50 g/L)
2. BAbout 8.5–10.5 g/dL (85–105 g/L)
3. CAbout 12–16 g/dL (120–160 g/L)
4. DAbout 0.5–1.0 g/dL (5–10 g/L)

Which blood group's plasma can be given to patients of any ABO group (universal plasma donor)?

1. AGroup B
2. BGroup O
3. CGroup A
4. DGroup AB

Which laboratory test best reflects the body's iron stores?

1. ASerum sodium
2. BPlatelet count
3. CSerum albumin
4. DSerum ferritin

A patient on warfarin for atrial fibrillation has a target INR of 2.0–3.0. How does the usual target for a patient with a mechanical mitral valve compare?

1. ALower, about 1.0–1.5
2. BHigher, about 2.5–3.5
3. CThe same, 2.0–3.0
4. DMuch higher, about 5.0–6.0

Which factor is most likely to raise a patient’s lithium level?

1. AEating more salt than usual for several days
2. BDrinking more fluid than usual in hot weather
3. CDehydration or a sudden drop in sodium intake
4. DTaking each dose with a meal instead of before

A patient with schizophrenia is starting clozapine. Which laboratory value must be monitored regularly?

1. AInternational normalized ratio
2. BSerum amylase
3. CAbsolute neutrophil count
4. DSerum lithium level

A young woman with frequent self-induced vomiting has swollen salivary glands. Which laboratory pattern is most likely?

1. ALow potassium, high bicarbonate and high amylase
2. BHigh potassium, low bicarbonate and low amylase
3. CHigh calcium, high phosphate and high glucose
4. DLow sodium, low bicarbonate and high lipase

A patient with acute pancreatitis has a rising BUN, a falling calcium and a glucose of 250 mg/dL (13.9 mmol/L) over the first 48 hours. What do these results suggest?

1. AA lab error from lipemic samples
2. BA resolving, mild pancreatitis
3. CIncreasingly severe pancreatitis
4. DAn unrelated new kidney stone