Lembar kerja Nilai laboratorium & elektrolit dengan jawaban

A urine dipstick is positive for nitrites. What does this most likely show?

1. ARed blood cells leaking from the glomeruli
2. BGlucose spilling into the urine from high blood levels
3. CKetones produced from fat breakdown in fasting
4. DBacteria in the urine that convert nitrate to nitrite

Ketika manset tensimeter dikembangkan di lengan, tangan pasien mengalami spasme dengan pergelangan tangan menekuk. Gangguan elektrolit mana yang ditunjukkan tanda ini?

1. AHipernatremia
2. BHiperkalemia
3. CHipokalsemia
4. DHiperkalsemia

Which form of bilirubin rises mainly when red cells are broken down faster than normal?

1. AStool bilirubin
2. BUrine bilirubin
3. CConjugated (direct)
4. DUnconjugated (indirect)

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 sign of leukemia that needs bone marrow testing
3. CA common stress response to surgery that is monitored
4. DDefinite wound infection that needs antibiotics now

Why is a blood β-hydroxybutyrate level often preferred to a urine ketone dipstick in DKA?

1. AIt measures the main ketone in DKA, and the dipstick may miss it
2. BIt shows the average ketone level over the past three months
3. CThe urine dipstick only detects ketones in people without diabetes
4. DIt is the only test that can measure glucose and ketones together

Seorang pasien memiliki natrium 152 mEq/L. Temuan mana yang diharapkan perawat?

1. AKedutan otot dengan tanda Trousseau positif
2. BHaus, selaput lendir kering, dan kegelisahan
3. CBradikardia dengan gelombang T runcing
4. DKenaikan berat badan dengan pergelangan kaki bengkak

A patient with suspected Cushing syndrome takes dexamethasone at night. The next morning, the cortisol is still high. What does this suggest?

1. AThe patient has primary hypothyroidism instead
2. BThe adrenal glands are not able to produce enough cortisol
3. CCortisol is being produced without normal feedback control
4. DThe result is normal, as dexamethasone raises cortisol

The nurse teaches a patient starting lithium. Which statement shows a need for further teaching?

1. A"I will tell my doctor if I have vomiting or diarrhea"
2. B"I will cut out salt from my diet completely to stay healthy"
3. C"I will check with the pharmacist before taking ibuprofen"
4. D"I will drink plenty of fluids, especially in hot weather"