Lembar kerja Nilai laboratorium & elektrolit dengan jawaban

Berapa rentang rujukan dewasa yang khas untuk magnesium serum?

1. ASekitar 1,3–2,1 mEq/L (0,65–1,05 mmol/L)
2. BSekitar 0,3–0,7 mEq/L (0,15–0,35 mmol/L)
3. CSekitar 6,0–8,0 mEq/L (3,0–4,0 mmol/L)
4. DSekitar 3,5–5,0 mEq/L (1,75–2,5 mmol/L)

On urinalysis, dark amber urine with a high specific gravity most often suggests:

1. ANormal urine after drinking extra water
2. BVery dilute urine from high fluid intake
3. CConcentrated urine from low fluid intake
4. DUrine with a large amount of glucose

In the US (NCEP ATP III) classification, which total cholesterol level is called desirable for an adult?

1. ABelow 300 mg/dL (7,8 mmol/L)
2. BBetween 250 and 300 mg/dL (6,5–7,8 mmol/L)
3. CAbove 240 mg/dL (6,2 mmol/L)
4. DBelow 200 mg/dL (5,2 mmol/L)

A stool test for Clostridioides difficile is ordered. Which sample is appropriate?

1. AA rectal swab from a patient with constipation
2. BAn unformed (liquid or soft) stool
3. CAny stool after a laxative dose
4. DA formed, hard stool sample

When blood is drawn from a central venous catheter, why is a small volume of blood usually discarded first, according to policy?

1. ATo remove blood clots that form in all central lines
2. BTo avoid diluting the sample with flush or infusion fluid
3. CTo check that the catheter tip is still in the right vein
4. DTo lower the patient's hemoglobin for a blood transfusion

Seorang pasien memiliki hitung neutrofil absolut 0,4 × 10³/µL. Tindakan mana yang tepat?

1. ABerbagi kamar dengan pasien lain yang sedang diobati untuk pneumonia
2. BMembawa bunga segar ke dalam ruangan untuk menaikkan semangat pasien
3. CMengukur suhu per rektal karena hasilnya lebih akurat
4. DKebersihan tangan yang ketat, pemeriksaan suhu, dan tidak ada pengunjung yang terinfeksi

A woman with preeclampsia is receiving IV magnesium sulfate. Her urine output has fallen and her creatinine is rising. Why is this a concern?

1. AMagnesium is excreted by the kidneys, so it can build up to toxic levels
2. BMagnesium causes potassium loss, so the kidneys release more fluid
3. CMagnesium is broken down by the liver, so it will stop working soon
4. DPoor kidney function makes the magnesium level fall quickly

A patient admitted with heavy alcohol use and malnutrition has a glucose of 52 mg/dL (2,9 mmol/L) and low magnesium. Which prescribed treatment should be given before the IV glucose?

1. AIV potassium
2. BOral iron
3. CIV thiamine
4. DIV insulin