ورقة عمل القيم المخبرية والشوارد مع الإجابات

Why is serum creatinine a better marker of kidney function than BUN?

1. AIt is less affected by diet, hydration and bleeding in the gut
2. BIt is made by the liver, so it rises in every kind of illness
3. CIt is affected mainly by protein intake, which is easy to control
4. DIt is not filtered by the kidneys, so its level stays very stable

Which laboratory test is used to diagnose sickle cell disease?

1. ASerum ferritin and transferrin saturation
2. BProthrombin time with INR
3. CErythrocyte sedimentation rate
4. DHemoglobin electrophoresis

متى يُسحب مستوى القاع (trough) للفانكومايسين؟

1. Aفور انتهاء التسريب
2. Bقبل الجرعة التالية مباشرة، عادةً خلال 30 دقيقة منها
3. Cبعد ساعتين من بدء التسريب
4. Dفي أي وقت مريح من اليوم، بغض النظر عن موعد الجرعة

A blood sample drawn just after a patient ate a fatty meal is reported as "lipemic." What does this mean for the results?

1. AThe sample shows the patient has diabetic ketoacidosis
2. BThe sample was contaminated by an IV fluid with dextrose
3. CHigh fat in the sample may interfere with some test results
4. DThe results are more accurate than in a fasting sample

A patient has macrocytic anemia with numbness and tingling of the feet and poor balance. Which deficiency is most likely?

1. AIron (low ferritin)
2. BFolate (folic acid)
3. CVitamin B₁₂
4. DVitamin C (ascorbic acid)

A patient's levothyroxine dose was changed today. When is the TSH usually rechecked?

1. AAfter about 6–8 weeks
2. BAfter about 1 year
3. CAfter about 3 days
4. DAfter about 24 hours

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

Which cerebrospinal fluid (CSF) pattern most strongly suggests bacterial meningitis?

1. ACloudy fluid, low glucose, high protein, many neutrophils
2. BClear fluid, normal glucose, normal protein, no white cells
3. CClear fluid, high glucose, low protein, many red cells
4. DClear fluid, normal glucose, mildly raised protein, lymphocytes