Cardiac labs

Question 1

What does CKMB measure?

Answer 1

Any damage to cardiac muscle

percentage < 5% indeterminate of cardiac muscle damage

Peak 24-48 hours later than injury

Question 2

What does Troponin measure?

Answer 2

Any damage to cardiac muscle.

Peaks 1-2 hours

Question 3

What is normal Troponin level?

Answer 3

< 0.04

Question 4

What is BNP?

Answer 4

Enzyme produced when cardiac muscle stretched.

Question 5

What are BNP values?

Answer 5

<100 has little to no evidence of current CHF.

Btw 100-400, early CHF

Over 400, indicative of CHF

Question 6

What hematological labs drawn for cardiac patients?

Answer 6

CBC with diff

RBC, WBC, Platelets

Question 7

What electrolyte/chemistry panels done on cardiac patient?

Answer 7

Potassium
Sodium
Calcium
Renal function
A1C

Question 8

What coagulation studies done on cardiac patient?

Answer 8

PT/INR
APTT
activated coagulation time

Question 9

What is normal INR rate?

Answer 9

1 if not on anticoagulants

2. 5 - 3 if on coagulant
3. 5 - 2 if artificial heart valves

(2 =half clotting ability of someone with INR of 1)

Question 10

What lipid studies are done on cardiac patient?

Answer 10

Total cholesterol
LDL
VLDL
HDL

Question 11

What is normal value for HDL?

Answer 11

> 45

Question 12

What is normal value for LDL?

Answer 12

<160

Question 13

What is normal for VLDL/triglyceride?

Answer 13

<190