ورقة عمل القيم المخبرية والشوارد مع الإجابات

لدى شخص لا يتناول مضاد تخثر، يكون INR نموذجيًا نحو:

1. A3,5–4,5
2. B0,8–1,2
3. C5,0–6,0
4. D2,0–3,0

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

1. A126 mg/dL (7,0 mmol/L)
2. B40 mg/dL (2,2 mmol/L)
3. C70 mg/dL (3,9 mmol/L)
4. D100 mg/dL (5,6 mmol/L)

Which liver test is especially sensitive to heavy alcohol use?

1. ASerum creatinine and BUN
2. BCardiac troponin I or T
3. CGamma-glutamyl transferase (GGT)
4. DSerum lipase (pancreatic enzyme)

A patient is starting atorvastatin. Which laboratory test is usually checked at baseline?

1. ASerum lipase
2. BLiver enzymes
3. CBlood cultures
4. DThyroid antibodies

Why must vitamin B₁₂ deficiency be ruled out before treating macrocytic anemia with folic acid alone?

1. AFolic acid can fix the anemia while B₁₂-related nerve damage continues
2. BFolic acid causes iron overload when B₁₂ levels are low
3. CFolic acid blocks the absorption of all B₁₂ from the diet
4. DFolic acid makes B₁₂ deficiency anemia much worse within a few days

A patient with chronic kidney disease has a magnesium of 3,8 mEq/L (1,9 mmol/L). Which product is the most likely cause?

1. AMagnesium-containing laxatives or antacids
2. BProton pump inhibitors taken long term
3. CLoop diuretics such as furosemide
4. DExcess alcohol use over many years

مريض بخثار وريدي عميق جديد على تسريب هيبارين، وبدأ الوارفارين للتو. لماذا يستمر الهيبارين عدة أيام؟

1. Aيزيد الهيبارين امتصاص الوارفارين من الأمعاء
2. Bيمنع الهيبارين الآثار الجانبية للوارفارين
3. Cلا يعمل الوارفارين إلا عند إعطاء الهيبارين في الوقت نفسه
4. Dيحتاج الوارفارين إلى عدة أيام ليبلغ تأثيره المضاد للتخثر الكامل

A patient has a hematocrit of 60% and a raised red cell mass. Which result suggests polycythemia vera rather than secondary polycythemia from chronic hypoxia?

1. AA high carboxyhemoglobin
2. BA low oxygen saturation
3. CA low erythropoietin level
4. DA high erythropoietin level