Ileus

An ambulance arrives during your shift with a 65-year-old man. He is holding a kidney bowl with approximately 200 mL of vomit with some blood in it. He denies any foregoing trauma and states that he is not allergic and that he is treated for high blood pressure and hypercholesterolemia. He smokes 10 cigarettes a day and drinks alcohol moderately. You will perform basic blood test (FBC, CMP, CRP, LFT, amylase, urea, creatinine and ions). What else are you going to do with your patient?
65
years
man
RR
18 /min
HR
86 /min
SpO2
99 %
BP
134/79 (97) mmHg
Examination
The patient is alert and oriented. His abdomen is soft, tender in epigastric region, no peritoneal signs present, positive bowel sounds, no hepatosplenomegaly noted, rectal examination without abnormalities.
Glycaemia
Gly
8,2  mmol/L
Complete blood count
HGB
136  g/L
PLT
227  x109/L
Biochemical analysis
Na
144  mmol/L
K
3,9  mmol/L
Cl
110  mmol/L
Glycaemia
Take a sample
Complete blood count
Take a sample
Biochemical analysis
Take a sample