1.やさしい
Which blood marker is the most specific for injury to the heart muscle?
- ALactate dehydrogenase
- BSerum myoglobin
- CTotal creatine kinase
- DCardiac troponin
2.やさしい
What is a typical reference range for urine specific gravity in an adult?
- AAbout 1.040–1.060
- BAbout 1.100–1.300
- CAbout 1.005–1.030
- DAbout 0.900–0.990
3.やさしい
What is a "critical value" (panic value) in laboratory reporting?
- AA result so abnormal that it may threaten life and needs prompt action
- BAny result that is slightly outside the laboratory reference range
- CA result that the laboratory could not measure because of a bad sample
- DA result that is normal but differs from the patient's last value
4.ふつう
A patient on hemodialysis has an arteriovenous (AV) fistula in the left arm. Where should the nurse draw routine blood samples?
- AFrom the left hand
- BFrom the fistula
- CFrom the right arm
- DFrom the left wrist
5.ふつう
A patient with a low clinical probability of deep vein thrombosis has a normal (negative) D-dimer. What is the best interpretation?
- AA pulmonary embolism is now certain to be present
- BA DVT is unlikely and can usually be ruled out
- CThe test is useless and should always be ignored
- DA DVT is confirmed and anticoagulation is needed
6.ふつう
Apart from the lithium level, which tests are monitored regularly in long-term lithium therapy?
- AKidney function and thyroid function
- BTroponin and creatine kinase (CK)
- CINR and the platelet count
- DLiver enzymes and serum amylase
7.むずかしい
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?
- AHyperkalemia from tissue damage is causing the bowel to stop
- BThe low potassium is due to the patient drinking too much water
- CThe potassium is normal for the second day after surgery
- DHypokalemia from gastric losses is contributing to paralytic ileus
8.むずかしい
Which set of results best shows that diabetic ketoacidosis is resolving?
- AA rising potassium with a falling bicarbonate
- BA falling glucose with a still widening anion gap
- CA closing anion gap with a rising bicarbonate and pH
- DA falling glucose with a falling serum bicarbonate
解答
- 1. D · Cardiac troponin
- 2. C · About 1.005–1.030
- 3. A · A result so abnormal that it may threaten life and needs prompt action
- 4. C · From the right arm
- 5. B · A DVT is unlikely and can usually be ruled out
- 6. A · Kidney function and thyroid function
- 7. D · Hypokalemia from gastric losses is contributing to paralytic ileus
- 8. C · A closing anion gap with a rising bicarbonate and pH
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