Abdominal Pain – Investigation

      No Comments on Abdominal Pain – Investigation


Laboratory Investigation

HB If bleeding suspected
WCC If infection suspected
EUC if GI loss is prominent (e.g. vomiting and diarrhoea) or third spacing (e.g. bowel obstruction)
If renal pathology suspected
LFT If hepato-biliary disease is suspected
Amylase / Lipase Biliary colic
CK/Phosphate/Lactate If an ischaemic process is suspected e.g. mesenteric ischaemia, closed loop obstruction
Calcium/Urate Renal colic
Pancreatitis (Ca++ for Ranson’s prognostic criteria)
ABG If the patient is systemically unwell or an ischaemic process is considered


An unwell patient may be too unstable for formal imaging.  Early involvement of a surgeon (for immediate laparotomy) or ICU (for stabilisation) may be a better option.



CXR Perforated viscus
Pancreatitis (Ranson’s criteria)
AXR Bowel obstruction (70% sensitivity)
Renal calculi (90% sensitivity)
Upper abdominal Ultrasound Biliary Colic
Obstructive Jaundice
Pelvic Ultrasound Ectopic pregnancy
Ovarian torsion
Ovarian cyst rupture
CT abdomen AAA (if stable)
Renal calculi
Intrabdominal collection/abscess


Leave a Reply

Your email address will not be published. Required fields are marked *