ورقة عمل القيم المخبرية والشوارد مع الإجابات

What does the term "leukopenia" mean?

1. AA low white blood cell count
2. BA high white blood cell count
3. CA high platelet count
4. DA low red blood cell count

أي قيمة هيموغلوبين لدى امرأة بالغة تقع دون المدى المرجعي النموذجي؟

1. A12,8 g/dL (128 g/L)
2. B14,6 g/dL (146 g/L)
3. C9,2 g/dL (92 g/L)
4. D13,5 g/dL (135 g/L)

On a liver panel, "direct bilirubin" refers to which form of bilirubin?

1. ABilirubin in the stool
2. BUnconjugated bilirubin
3. CTotal urine urobilinogen
4. DConjugated bilirubin

A healthy patient's result is slightly outside the laboratory reference range, and all other results are normal. Which statement best explains why this can happen?

1. AAny result outside the range always means disease is present
2. BReference ranges include every healthy person without exception
3. CRanges cover about 95% of healthy people, so some fall outside
4. DReference ranges are the same in every laboratory worldwide

A patient without symptoms has a fasting plasma glucose of 132 mg/dL (7,3 mmol/L) on Monday and 138 mg/dL (7,7 mmol/L) on Thursday. What does this show?

1. AThe results meet the criteria for diabetes
2. BThe results are within the normal fasting range
3. CThe results show prediabetes only
4. DThe results show reactive hypoglycemia

Why must a blue-top (citrate) coagulation tube be filled to the correct level?

1. AAn overfull tube is needed to measure the potassium level
2. BThe laboratory charges extra when a tube is not filled correctly
3. CUnderfilled tubes always give a falsely low hemoglobin and hematocrit
4. DThe blood-to-anticoagulant ratio must be right for accurate clotting times

A patient on warfarin with an INR of 3,6 fell and hit their head an hour ago. They now report a worsening headache and drowsiness. What is the priority?

1. AReport urgently for imaging and possible reversal
2. BEncourage rest in a dark room to settle the pain
3. CGive acetaminophen (paracetamol) and recheck the INR tomorrow
4. DHold warfarin for one dose and observe at home

A healthy woman at 10 weeks of pregnancy has a slightly low TSH with a normal free T₄ and no symptoms. What is the most likely explanation?

1. AShe has developed Graves disease in pregnancy
2. BThe result shows severe primary hypothyroidism
3. CShe has pituitary failure from the pregnancy
4. DhCG stimulates the thyroid in early pregnancy