ورقة عمل القيم المخبرية والشوارد مع الإجابات

Why is prealbumin (transthyretin) sometimes used to follow a patient's nutritional status instead of albumin?

1. AIt has a short half-life, so it changes within days
2. BIt is measured in urine, so no blood test is needed
3. CIt is not affected by inflammation or liver disease
4. DIt has a long half-life, so it changes over months

Which laboratory test is used to monitor warfarin therapy?

1. AaPTT
2. BPlatelet count
3. CD-dimer
4. DPT with INR

يُعرَّف نقص العدلات (neutropenia) عادةً بأن العدد المطلق للعدلات (ANC) أقل من نحو:

1. A1,5 × 10³/µL (1500/mm³)
2. B15 × 10³/µL (15 000/mm³)
3. C5,0 × 10³/µL (5000/mm³)
4. D150 × 10³/µL (150 000/mm³)

أي قيمة مخبرية تعكس على أفضل وجه سبب التشوش لدى مريض بمرض كبدي شديد ورعاش رفرفي؟

1. Aارتفاع التروبونين
2. Bانخفاض ليباز المصل
3. Cانخفاض بوتاسيوم المصل فقط
4. Dارتفاع الأمونيا في المصل

A stable adult who is not bleeding receives one unit of packed red cells. By about how much is the hemoglobin expected to rise?

1. AAbout 5 g/dL (50 g/L)
2. BAbout 3 g/dL (30 g/L)
3. CAbout 0,1 g/dL (1 g/L)
4. DAbout 1 g/dL (10 g/L)

An older adult with chronic kidney disease starts trimethoprim-sulfamethoxazole for a urinary tract infection. Which electrolyte should be monitored closely?

1. AChloride, because the drug causes chloride loss
2. BSodium, because the drug causes heavy sodium retention
3. CCalcium, because the drug binds calcium in the gut
4. DPotassium, because trimethoprim can raise it

A patient receiving parenteral nutrition with lipid emulsion has a triglyceride level of 620 mg/dL (7,0 mmol/L). Why is this result important?

1. AIt raises the risk of acute pancreatitis
2. BIt is a normal fasting value for adults
3. CIt means the patient needs more lipid
4. DIt shows the nutrition is fully effective

A health care worker's hepatitis B tests show: HBsAg negative, anti-HBs positive, anti-HBc positive. What does this mean?

1. AImmunity from vaccination only, never infected
2. BPast infection that has resolved, with immunity
3. CNot immune and never exposed to the virus
4. DCurrent chronic hepatitis B infection