Why?

Altered mental state: absence of hypoglycaemia symptoms does not exclude hypoglycaemia

Patient	Target Disorder and Reference Standard	Diagnostic Test	LR+ (95% CI)	Post-test Probability	LR- (95% CI)	Post-test Probability
altered mental state c (pre-test probability: 9%)	hypoglycaemia (blood glucose or clinical diagnosis)	any of tachycardia, sweating or available history of diabetes mellitus	1.7 (1.3 to 2.1)	14%	0.45 (0.23 to 0.86)	4%