Lembar kerja Nilai laboratorium & elektrolit dengan jawaban

Why is glucose normally absent from the urine?

1. AThe tubules reabsorb all filtered glucose at normal blood levels
2. BGlucose is changed into ketones before it reaches the urine
3. CThe bladder lining breaks down any glucose that reaches the urine
4. DThe glomeruli do not filter glucose out of the blood at any level

What is the usual BUN-to-creatinine ratio in a healthy adult (using mg/dL)?

1. AAbout 100:1 to 200:1
2. BAbout 50:1 to 60:1
3. CAbout 1:1 to 2:1
4. DAbout 10:1 to 20:1

What is a typical adult reference range for total serum bilirubin?

1. AAbout 10–20 mg/dL (171–342 µmol/L)
2. BAbout 0,3–1,2 mg/dL (5–21 µmol/L)
3. CAbout 0,03–0,1 mg/dL (0,5–1,7 µmol/L)
4. DAbout 3–12 mg/dL (51–205 µmol/L)

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

Why is a baseline platelet count taken before starting heparin therapy?

1. ASo that the INR can be calculated from the platelet count later
2. BBecause heparin increases the platelet count to dangerous levels
3. CSo a later fall from heparin-induced thrombocytopenia is detected
4. DBecause heparin is given at a dose based on the platelet count

Seorang pasien yang mengonsumsi warfarin mulai makan kangkung dan bayam dalam porsi besar setiap hari. INR-nya turun. Saran mana yang paling tepat?

1. AMenjaga asupan makanan kaya vitamin K tetap stabil dari hari ke hari
2. BTidak pernah makan sayuran hijau lagi
3. CMenggandakan dosis warfarin tanpa memberi tahu penulis resep
4. DMenghentikan warfarin sampai pola makan kembali normal

A patient's potassium is 7,2 mEq/L, and the monitor shows wide QRS complexes. Several treatments are prescribed. Which should be given first?

1. AUrgent hemodialysis session
2. BIV furosemide (a loop diuretic)
3. CAn oral potassium binder dose
4. DIV calcium gluconate (or chloride)

A patient has fatigue, weight gain and constipation. Results: TSH 24 mIU/L, free T₄ low, total cholesterol 285 mg/dL (7,4 mmol/L), sodium 131 mEq/L. What is the best interpretation?

1. AFamilial hypercholesterolemia, unrelated to the thyroid results
2. BSecondary hypothyroidism from failure of the pituitary gland
3. CPrimary hypothyroidism, which can raise lipids and lower sodium
4. DHyperthyroidism, with suppressed thyroid hormone production