MSFinals-1421
A 63-year-old man presents to the Emergency Department with vague, crampy central abdominal ‘discomfort’ for the last three days. He was recently prescribed codeine phosphate for knee pain, which is secondary to osteoarthritis. He has never had this type of abdominal discomfort before. He last moved his bowels three days ago but denies nausea and vomiting. His past medical history is significant for hypertension. He has a 40-pack-year smoking history and denies any history of alcohol use. He has had no previous surgery.
His physical examination is normal. His observations and blood test results are shown below.
Temperature 36.3°C
Blood pressure 145/88 mmHg
Respiratory rate 15 breaths/min
Oxygen saturation (SpO2) 99% (room air)
Investigation Result Normal value
White cell count (WCC) 5.5 × 109/l 4–11 × 109/l
C-reactive protein (CRP) 1.5 mg/dl 0–10 mg/l
Total bilirubin 5.0 µmol/l 2–17 µmol/l
The Emergency doctor performs an abdominal ultrasound to examine for an abdominal aortic aneurysm. During this process, he also performs an ultrasound scan of the right upper quadrant, which shows several gallstones in a thin-walled gallbladder. The abdominal aorta is visualised and has a diameter of 2.3 cm. The patient’s abdominal pain is thought to be due to constipation.
Which of the following is the most appropriate management for this patient’s gallstones?