Lembar kerja Nilai laboratorium & elektrolit dengan jawaban

Which drug is routinely monitored with blood levels because of its narrow therapeutic range?

1. AAmoxicillin
2. BLoratadine
3. CLithium
4. DOmeprazole

What does a positive direct antiglobulin test (direct Coombs test) show?

1. AThe patient's platelets are clumping together in the blood sample
2. BThe patient's plasma is missing the clotting factor VIII
3. CThe patient's red cells are too small and contain little hemoglobin
4. DAntibodies or complement are attached to the patient's red cells

Below about which blood glucose level is hypoglycemia usually defined and treated in a person with diabetes?

1. A100 mg/dL (5,6 mmol/L)
2. B126 mg/dL (7,0 mmol/L)
3. C40 mg/dL (2,2 mmol/L)
4. D70 mg/dL (3,9 mmol/L)

A week after a splenectomy, a patient's platelet count is 650 × 10³/µL. What is the best interpretation?

1. AA sign of new leukemia that needs immediate chemotherapy
2. BA laboratory error, because platelets fall after splenectomy
3. CA sign of iron overload from the surgery and transfusion
4. DAn expected rise after splenectomy that increases clot risk

A patient on hemodialysis has an arteriovenous (AV) fistula in the left arm. Where should the nurse draw routine blood samples?

1. AFrom the right arm
2. BFrom the fistula
3. CFrom the left hand
4. DFrom the left wrist

A patient takes valproate (valproic acid) for epilepsy. Which tests are monitored regularly?

1. ALiver function tests and platelet count
2. BThyroid function and serum calcium
3. CTroponin and B-type natriuretic peptide
4. DSerum lithium and urine specific gravity

After lying on the floor for many hours, a patient has a CK of 40,000 U/L, a potassium of 6,1 mEq/L and dark urine. Which prescribed treatment is the priority?

1. AAn oral potassium supplement with each meal
2. BHigh-dose NSAIDs for the muscle pain
3. CLarge-volume IV fluids with cardiac monitoring
4. DFluid restriction to protect the heart from overload

A stable patient's hemoglobin has been 13–14 g/dL for days. Today's result is 8,2 g/dL, but the patient feels well, the vital signs are normal and there is no bleeding. What should the nurse suspect first?

1. AA sample taken from the wrong patient
2. BA normal day-to-day variation in Hb
3. CAcute bone marrow failure overnight
4. DSudden massive internal bleeding