Cardiac Injury Markers and Lipids Quiz

Which cardiac marker is currently considered the gold standard for diagnosing myocardial infarction (MI)?

• CK-MB

• Myoglobin

• Troponin (I and T)

• LDH

Myoglobin rises earlier than CK-MB after myocardial infarction but is not used clinically anymore because:

• It remains elevated too long

• It is not cardiac specific

• It is too expensive

• It cannot be measured in serum

Which lipid particle is primarily responsible for transporting dietary triglycerides from the intestine?

• VLDL

• LDL

• HDL

• Chylomicrons

The Friedewald formula is used to calculate:

• Total cholesterol

• HDL cholesterol

• LDL cholesterol

• VLDL cholesterol

Which cardiac marker is primarily used to assess heart failure rather than myocardial infarction?

• A) BNP

• B) CK-MB

• C) Troponin

• D) LDH

Which lipoprotein is considered 'good cholesterol' because it removes cholesterol from peripheral cells?

• LDL

• HDL

• VLDL

• Chylomicrons

Familial hypercholesterolemia is commonly due to a mutation affecting:

• ApoA-1

• ApoB-100

• LDL receptor

Tags

NGSS.HS-LS3-2

In cardiovascular risk stratification, which ratio is commonly used?

• LDL/HDL

• Triglycerides/HDL

• Total Cholesterol/HDL

• VLDL/HDL

Elevated homocysteine is considered an independent risk factor for:

• Diabetes

• Cardiovascular disease

• Renal failure

• Liver disease

Which cardiac marker is known for peaking earliest after MI but also normalizing quickly?

• LDH

• Myoglobin

• Troponin

• BNP