ورقة عمل القيم المخبرية والشوارد مع الإجابات

ما المدى المرجعي النموذجي لأسمولية المصل؟

1. Aنحو 50–100 mOsm/kg
2. Bنحو 275–295 mOsm/kg
3. Cنحو 400–500 mOsm/kg
4. Dنحو 135–145 mOsm/kg

Uric acid in the blood is a breakdown product of:

1. AHemoglobin
2. BPurines
3. CGlucose
4. DFats

Which type of white blood cell is normally the most numerous in an adult's blood?

1. ALymphocytes
2. BEosinophils
3. CMonocytes
4. DNeutrophils

A patient with a low clinical probability of deep vein thrombosis has a normal (negative) D-dimer. What is the best interpretation?

1. AA DVT is confirmed and anticoagulation is needed
2. BA pulmonary embolism is now certain to be present
3. CA DVT is unlikely and can usually be ruled out
4. DThe test is useless and should always be ignored

بدأ مريض يتناول الوارفارين تناول كميات كبيرة يوميًا من اللفت الأخضر والسبانخ، وانخفض INR لديه. ما النصيحة الأنسب؟

1. Aإيقاف الوارفارين إلى أن يعود النظام الغذائي طبيعيًا
2. Bالحفاظ على ثبات تناول الأطعمة الغنية بفيتامين K من يوم إلى آخر
3. Cعدم تناول الخضروات الخضراء مرة أخرى أبدًا
4. Dمضاعفة جرعة الوارفارين دون إخبار الواصف

On the first day after major surgery, a patient's white cell count is 12,5 × 10³/µL, with no fever or wound signs. What is the best interpretation?

1. AA laboratory error, since surgery lowers white cells
2. BA common stress response to surgery that is monitored
3. CDefinite wound infection that needs antibiotics now
4. DA sign of leukemia that needs bone marrow testing

A child with sickle cell disease and a recent viral illness is pale and tired. The hemoglobin has fallen sharply, and the reticulocyte count is very low. What is the most likely problem?

1. AA normal finding in sickle cell disease
2. BAn aplastic crisis, often caused by parvovirus B19
3. CIron deficiency from a poor diet over months
4. DA vaso-occlusive pain crisis in the bones

A patient has a sodium of 150 mEq/L, a glucose of 180 mg/dL and a BUN of 28 mg/dL. Using the formula 2 × Na + glucose/18 + BUN/2,8, what is the calculated serum osmolality?

1. AAbout 320 mOsm/kg, which is high
2. BAbout 300 mOsm/kg, which is normal
3. CAbout 285 mOsm/kg, which is normal
4. DAbout 358 mOsm/kg, which is high