Scheda di esercizi di Valori di laboratorio ed elettroliti con soluzioni

In a healthy adult, the CSF glucose is usually about what proportion of the blood glucose?

1. AAbout double (200%)
2. BAbout one tenth (10%)
3. CExactly the same (100%)
4. DAbout two-thirds (60%)

Qual è un tipico intervallo di riferimento negli adulti per la conta piastrinica?

1. ACirca 12–16 × 10³/µL (12–16 × 10⁹/L)
2. BCirca 1000–2000 × 10³/µL (1000–2000 × 10⁹/L)
3. CCirca 150–400 × 10³/µL (150–400 × 10⁹/L)
4. DCirca 4,5–11 × 10³/µL (4,5–11 × 10⁹/L)

What is the usual target INR for a patient taking warfarin for a deep vein thrombosis?

1. A0,8–1,2
2. B4,0–5,0
3. C1,0–1,5
4. D2,0–3,0

A test has very high sensitivity for a disease. What does a negative result mean?

1. AThe disease is unlikely, so it helps rule it out
2. BThe result cannot be used, because sensitivity is high
3. CThe patient must have a different disease instead
4. DThe disease is certain, so treatment should begin

How does the nurse start a 24-hour urine collection at 08:00?

1. ACollect only the first urine passed on waking, and repeat this the next morning
2. BHave the patient void and discard that urine, then save all urine until 08:00 the next day
3. CSave three samples spread across the day and discard all of the urine passed at night
4. DSave the 08:00 urine as the first sample, then collect until 08:00 the next day

A patient has a calcium of 7,0 mg/dL (1,75 mmol/L) and tingling around the mouth. Which nursing measure is most appropriate?

1. APut seizure precautions in place and report the result
2. BLimit dairy products until the level falls again
3. CEncourage 3 L of fluid per day to dilute the calcium
4. DPromote walking to move calcium back into the bone

A man of Mediterranean descent develops dark urine, jaundice and a falling hemoglobin a few days after eating fava beans. Which condition is most likely?

1. AIron-deficiency anemia from poor diet
2. BG6PD deficiency with acute hemolysis
3. CSickle cell crisis with vaso-occlusion
4. DVitamin B₁₂ deficiency anemia

A patient has a hemoglobin of 11,2 g/dL (112 g/L), an MCV of 64 fL, a normal ferritin and a normal-to-high red cell count. What is the most likely cause?

1. AIron deficiency
2. BThalassemia trait
3. CAcute blood loss
4. DVitamin B₁₂ deficiency