Cardiology Labs & Diagnostics

Question 1

released when cardiac tissue damaged

Answer 1

cardiac enzymes

Question 2

3 cardiac enzymes/biomarkers

Answer 2

creatine kinase, troponin, myoglobin

Question 3

Ck/CPK

Answer 3

creatine kinase/phosphokinase - muscle enzyme. MB type specific to myocardial cells.

Question 4

CK-MB levels increase

Answer 4

approx 3-4hrs post myocardial injury, remain elevated 3-4 days

Question 5

troponin enzyme increase

Answer 5

3-4 hrs post myocardial injury, detectable 10-14 days following

Question 6

3 types of troponin enzymes

Answer 6

troponin i (cTnI), troponin T (cTnT), troponin C (cTnC)

Question 7

cardiac enzyme released with muscle tissue damage, not specific to MIs, detectable in 30mins

Answer 7

myoglobin

Question 8

test showing amount of cholesterol, lipoproteins, triglycerides. assesses risk of CAD

Answer 8

serum lipid test

Question 9

liver panel tests (4)

Answer 9

aspartate aminotransferase (AST), alanine aminotransferase (ALT)/ alkaline phosphatase (ALP/alk phos), bilirubin lactate dehydrogenase (LDH), albumin

Question 10

lipid panel (4)

Answer 10

total cholesterol, LDL, HDL, triglycerides

Question 11

arterial blood gas (3)

Answer 11

PaO2 (partial pressure oxygen in arterial blood), SaO2 (percentage of available hemoglobin saturated with oxygen), PaCO2 (partial pressure of CO2 in arterial blood)

Question 12

electrolyte panel (4)

Answer 12

sodium, potassium, bicarbonate, chloride lab

Question 13

BMP (8)

Answer 13

basic metabolic panel. includes BUN, creatinine, sodium, potassium chloride, CO2, anion gap - NA, glucose, calcium

Question 14

PTT

Answer 14

partial thromboplastin time

Question 15

PT

Answer 15

prothrombin time

Question 16

t4

Answer 16

thyrotropin, thyroid measurement

Question 17

test indicating infarcted or scarred myocardium via thallium uptake

Answer 17

thallium 201 scintigraphy

Question 18

test showing blood flow/myocardial activity via glucose injection+intravenous radiopharmaceutical

Answer 18

positron emission tomography scan (PET scan)

Question 19

test showing motion of left ventricular wall + ejection of blood

Answer 19

technetium 99m ventriculography / multiple-gated acquisition scan (MUGA scan)

Question 20

procedure using magnetic field and radiofrequency waves to produce images

Answer 20

MRI (magnetic resonance imaging)

Question 21

diagnostic test using injected ionizing radiation to produce cross-sectional images. used to detect aortic aneurysms

Answer 21

CAT scan - computer axial tomography

Question 22

contrast injected, images of tissues not being examined are subtracted

Answer 22

digital subtraction angiography

Question 23

sound waves determine areas of vascular occlusion. shows blockage

Answer 23

doppler ultrasound

Question 24

O2, BP, ECG, oxygen saturation measured in motionless standing position; positive test produces syncope

Answer 24

tilt table test