Point-of-Care Troponin T Testing in the Management of Patients with Chest Pain in the Swedish Primary Care

Table 5

Diagnostic accuracy of point-of-care Troponin T testing among chest pain patients in primary care, (a) for acute myocardial infarction (AMI) and (b) for AMI or unstable angina (UA).

(a)

		“AMI”	“No AMI”
Point of care	>0.03 𝜇g/L	2	3	5	+PV = 2/5 = 40%
Troponin T	<0.03 𝜇g/L	1	122	123	−PV = 122/123 = 99%
		3	125	128

Sensitivity 2/3 = 67%, specificity = 122/125 = 98%.

(b)

		“AMI + UA”	“No AMI + UA”
Point of care	>0.03 𝜇g/L	2	3	5	+PV = 2/5 = 40%
Troponin T	<0.03 𝜇g/L	5	118	123	−PV = 118/123 = 96%
		7	121	128

Sensitivity 2/7 = 29%, specificity = 118/121 = 98%.