NAVLE Practice Test 7
10 free NAVLE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
Question 1 of 10
Clinical PracticeA 4-year-old castrated male Siamese cat is presented for vomiting, lethargy and anorexia of 3 days' duration. He lives indoors, is current on core vaccines, and his weight is stable at 4.8 kg (10.6 lb). Temperature 104.0°F (40.0°C), heart rate 210 beats/min, respiratory rate 32 breaths/min. Mucous membranes are icteric, and he is painful on cranial abdominal palpation. Abdominal ultrasound shows a thickened gallbladder wall with echogenic sludge and a mildly prominent common bile duct without obstruction; the pancreas and intestinal walls are normal. Coagulation times are within reference ranges. Results are shown. Which of the following is the most appropriate next diagnostic step?
| Analyte | Result | Reference range | Result (SI) | Reference range (SI) |
|---|---|---|---|---|
| Total bilirubin | 3.8 mg/dL | 0.0–0.9 mg/dL | 65 µmol/L | 0–15 µmol/L |
| ALT | 410 U/L | 12–130 U/L | 410 U/L | 12–130 U/L |
| ALP | 160 U/L | 14–111 U/L | 160 U/L | 14–111 U/L |
| GGT | 14 U/L | 0–5 U/L | 14 U/L | 0–5 U/L |
| Albumin | 3.0 g/dL | 2.5–3.9 g/dL | 30 g/L | 25–39 g/L |
| WBC | 27.5 × 10³/µL | 5.5–19.5 × 10³/µL | 27.5 × 10⁹/L | 5.5–19.5 × 10⁹/L |
| Band neutrophils | 1.4 × 10³/µL | 0–0.3 × 10³/µL | 1.4 × 10⁹/L | 0–0.3 × 10⁹/L |