Cardiac Biomarkers

Question 1

What enzymes are increased with myocardial cell injury?

Answer 1

ALT

CK

Question 2

What is a specific cardiac function protein?

Answer 2

Natriuretic peptides

Question 3

Cardiac biomarkers should have….

Answer 3

Quick turn around time
High sensitivity and specificity for cardiac injury
Affordable
Screening test for asymptomatic heart disease
Distinguish cardiac vs. non cardiac dyspnea
identify myocardial injury associated with: Myocarditis, gastric dilatation and volvulus, Doxorubricin cardiotoxicity, trauma

Question 4

What is an inhibitory protein that prevents contraction when calcium is not present?

Answer 4

Troponin I

Question 5

Hormone released by the heart in response to stimuli

Answer 5

Natriuretic peptide

Question 6

What hormone is produced by the atrium?

Answer 6

Atrial Natriuretic peptide

Question 7

What hormone is produced by the ventricles?

Answer 7

Brain natriuretic peptide