Author: Zoe Hinchcliffe / Editor: Steve Corry-Bass / Codes: NepC2, NepC3, SLO1, SLO3, SuC4, SuP3, SuP7 / Published: 28/10/2021
A 66-year old male attends the Emergency Department (ED) with a 3-day history of abdominal pain, cramping and distension. He complains of generalised pain across the whole of his abdomen, associated with intermittent nausea and vomiting. He has attended today as the pain and bloating has worsened, with a pain score of 8/10.
The patient mentions he has been feeling constipated for the past few days – his bowels were last opened 5 days-ago and does not recall passing any gas.
His past medical history includes poorly controlled type-two diabetes mellitus, hypertension, hypercholesterolaemia and asthma. He currently takes simvastatin, Bendroflumethiazide, inhaled salbutamol and subcutaneous insulin. He has never had any abdominal surgery.
His observations at triage are as follows:
RR – 25
SpO2 – 98%
HR – 112 bpm
BP – 146/92 mmHg
CRT – 2 seconds
Temp – 37.4ºC
On examination, the patient’s abdomen is noticeably distended with tenderness in all four quadrants on both light and deep palpation. On percussion his abdomen sounds hyper-resonant in all areas and bowel sounds are infrequent and ‘tinkling’ in nature. Chest and heart sounds are normal.
You decide to perform some investigations.
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Question 1 of 3
1. Question
An abdominal X-ray is performed and shown below.
Case courtesy of Radswiki, Radiopaedia.org. From the case rID: 11177
What is the main abnormality observed?
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Question 2 of 3
2. Question
Laboratory blood tests are performed and show:
Hb 120 g/L (115 – 160)
MCV 90 (82 – 100 fl)
PLTs 410 (150 – 400 * 109/L)
WCC 5.2 (4.0-11.0 * 109/L)
Serum Na+ 133 (135 – 145 mmol/L)
Serum K+ 2.9 (3.5 – 5.3 mmol/L)
Urea 4.3 (2.0 – 7.0 mmol/L)
Creatinine 90 (55 – 120 umol/L)
CRP 50 (<5 mg/L)
Which medication would NOT contribute to this abnormal finding?
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Question 3 of 3
3. Question
From the investigations, you suspect a paralytic ileus from hypokalaemia. Although rare, you have excluded any mechanical causes of the obstruction and await a general surgery review.
What important interventions can you initiate in the meantime?
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Module Content
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8 responses
Useful case and revision of pharmacology. Always off putting when you kind of want to do multiple things of the MCQ. Didn’t want to give fluids NG – RTFQ!
Interesting informative.
Informative case. Cause of intestinal obstruction is not always surgical but we need to keep in mind that electrolyte imbalance can also cause intestinal obstruction.
V GOOD
intersting revision
good module
Interesting one.
Great Revision