Phiếu bài tập Giá trị xét nghiệm và điện giải có đáp án

Nồng độ peptide lợi niệu type B (BNP) tăng ủng hộ mạnh nhất tình trạng nào ở người bệnh khó thở?

1. ACơn hen
2. BSuy tim
3. CCơn hoảng loạn
4. DViêm phổi

What does a "stat" laboratory order mean?

1. AThe test is done at night
2. BThe test is done next week
3. CThe test is done immediately
4. DThe test is done if time allows

A laboratory reports that a blood sample is "hemolyzed." What does this mean?

1. AThe sample contains too many platelets
2. BRed cells in the sample have broken open
3. CThe sample has a very low hemoglobin
4. DThe sample was taken from an artery

Which IV fluid can be given through the same line as a red cell transfusion?

1. ALactated Ringer's (Hartmann's) solution
2. B0,45% sodium chloride
3. C0,9% sodium chloride
4. D5% dextrose in water

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

A patient has started parenteral nutrition (PN) through a central line. Which test is monitored most frequently in the first days?

1. ABlood glucose
2. BHemoglobin A1c
3. CThyroid hormones
4. DSerum 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. AAn unrelated new kidney stone
2. BA resolving, mild pancreatitis
3. CIncreasingly severe pancreatitis
4. DA lab error from lipemic samples

A patient on lithium has had vomiting and diarrhea for 3 days and has been taking ibuprofen. They now have a coarse tremor and confusion. The lithium level is 2,2 mEq/L. What is the best interpretation and action?

1. AIbuprofen side effects only; give it with food
2. BLithium toxicity; hold lithium and report urgently
3. CA low level; ask for the lithium dose to be raised
4. DA normal level; continue lithium as prescribed