MMSC436: QUIZ 3 CARDIAC ASSESSMENT
QUESTIONS WITH VERIFIED ANSWERS
Which one of the following cardiac biomarkers is elevated about 50 times the upper limit
of normal at 24 hrs after onset of an acute myocardial infarction?
A. Ck-2 (ckmb)
B. Troponin
C. Myoglobin
D. Total ck - answers - b. Troponin
Why would high-sensitivity c-reactive protein (crp) be an indicator of a potential
myocardial infarction?
A. It is an acute phase reactant plasma protein that rises in response to inflammation
and the atherosclerotic process
B. It is an enzyme found in skeletal muscle and cardiac muscle that is released upon
muscle damage
C. Crp levels rise in response to decreased atp generation in the heart
D. It is a myocardial protein that regulates muscle contraction through interaction with
myosin and actin - answers - a. It is an acute phase reactant plasma protein that rises in
response to inflammation and the atherosclerotic process
In which of the following disorders is measurement of brain type natriuretic peptide
(bnp) clinically useful?
A. Acute myocardial infarctions
B. Congestive heart failure
C. Pericarditis
D. Tachycardia - answers - b. Congestive heart failure
Myoglobin is a good cardiac marker because it:
A. Is an extremely large protein and therefore does not diffuse into blood very easily
B. Diffuses into the blood more slowly than ck-mb
C. Doesn't diffuse into the blood at all when cardiac tissue dies
D. Diffuses into the blood more quickly than ck-mb - answers - d. Diffuses into the blood
more quickly than ck-mb
The troponin complex consists of which of the following?
A. Troponin a, troponin c, troponin t
B. Troponin m1, troponin m2, troponin k
C. Troponin m and troponin h
D. Troponin t, troponin i, troponin c - answers - d. Troponin t, troponin i, troponin c
Which one of the following is considered to be the most specific marker for adverse
ventricular remodeling following an acute myocardial infarction?
, A. Ck-2
B. Bnp
C. Troponin
D. Myoglobin - answers - b. Bnp
Which one of the following cardiac markers is elevated for the longest period of time
after an mi?
A. Troponins
B. Ck-2 (ck-mb)
C. Myoglobin
D. Hs-crp - answers - a. Troponins
Which one of the following specimen types and collection methods is best for lab
assessment of brain natriuretic peptide (bnp) in the evaluation of congestive heart
failure?
A. Urine in sterile collection container for analysis of bnp metabolites only
B. Edta-anticoagulated whole blood or plasma in plastic blood collection tubes only
C. Serum in glass blood collection tubes only
D. Heparinized plasma in any type of blood collection tube - answers - b. Edta-
anticoagulated whole blood or plasma in plastic blood collection tubes only
Lab measurements for bnp be reported in...
A. Nanograms/liter
B. Grams/deciliter
C. Picomoles/milliliter
D. Millimoles/liter - answers - a. Nanograms/liter
A cardiac marker that increases progressively with increasing severity and is not
increased (or decreased) in conditions that mimic congestive heart failure is:
A. B-type natriuretic peptide
B. Myoglobin
C. Ck-2
D. Troponin i - answers - a. B-type natriuretic peptide
The most common lab method used to assess bnp is:
A. Immunoassay
B. Hplc
C. Serum electrophoresis
D. Nephelometry - answers - a. Immunoassay
In a point of care (poc) test for a cardiac biomarker used in the evaluation of an
individual with possible acute coronary syndrome, which one of the following is a lab
medicine practice guideline of the national academy of clinical biochemistry (nacb)?
A. Qc and qa are not required when using poc assays
B. Labs that use qualitative poc biomarker assays should confirm results with a
quantitative biomarker test
QUESTIONS WITH VERIFIED ANSWERS
Which one of the following cardiac biomarkers is elevated about 50 times the upper limit
of normal at 24 hrs after onset of an acute myocardial infarction?
A. Ck-2 (ckmb)
B. Troponin
C. Myoglobin
D. Total ck - answers - b. Troponin
Why would high-sensitivity c-reactive protein (crp) be an indicator of a potential
myocardial infarction?
A. It is an acute phase reactant plasma protein that rises in response to inflammation
and the atherosclerotic process
B. It is an enzyme found in skeletal muscle and cardiac muscle that is released upon
muscle damage
C. Crp levels rise in response to decreased atp generation in the heart
D. It is a myocardial protein that regulates muscle contraction through interaction with
myosin and actin - answers - a. It is an acute phase reactant plasma protein that rises in
response to inflammation and the atherosclerotic process
In which of the following disorders is measurement of brain type natriuretic peptide
(bnp) clinically useful?
A. Acute myocardial infarctions
B. Congestive heart failure
C. Pericarditis
D. Tachycardia - answers - b. Congestive heart failure
Myoglobin is a good cardiac marker because it:
A. Is an extremely large protein and therefore does not diffuse into blood very easily
B. Diffuses into the blood more slowly than ck-mb
C. Doesn't diffuse into the blood at all when cardiac tissue dies
D. Diffuses into the blood more quickly than ck-mb - answers - d. Diffuses into the blood
more quickly than ck-mb
The troponin complex consists of which of the following?
A. Troponin a, troponin c, troponin t
B. Troponin m1, troponin m2, troponin k
C. Troponin m and troponin h
D. Troponin t, troponin i, troponin c - answers - d. Troponin t, troponin i, troponin c
Which one of the following is considered to be the most specific marker for adverse
ventricular remodeling following an acute myocardial infarction?
, A. Ck-2
B. Bnp
C. Troponin
D. Myoglobin - answers - b. Bnp
Which one of the following cardiac markers is elevated for the longest period of time
after an mi?
A. Troponins
B. Ck-2 (ck-mb)
C. Myoglobin
D. Hs-crp - answers - a. Troponins
Which one of the following specimen types and collection methods is best for lab
assessment of brain natriuretic peptide (bnp) in the evaluation of congestive heart
failure?
A. Urine in sterile collection container for analysis of bnp metabolites only
B. Edta-anticoagulated whole blood or plasma in plastic blood collection tubes only
C. Serum in glass blood collection tubes only
D. Heparinized plasma in any type of blood collection tube - answers - b. Edta-
anticoagulated whole blood or plasma in plastic blood collection tubes only
Lab measurements for bnp be reported in...
A. Nanograms/liter
B. Grams/deciliter
C. Picomoles/milliliter
D. Millimoles/liter - answers - a. Nanograms/liter
A cardiac marker that increases progressively with increasing severity and is not
increased (or decreased) in conditions that mimic congestive heart failure is:
A. B-type natriuretic peptide
B. Myoglobin
C. Ck-2
D. Troponin i - answers - a. B-type natriuretic peptide
The most common lab method used to assess bnp is:
A. Immunoassay
B. Hplc
C. Serum electrophoresis
D. Nephelometry - answers - a. Immunoassay
In a point of care (poc) test for a cardiac biomarker used in the evaluation of an
individual with possible acute coronary syndrome, which one of the following is a lab
medicine practice guideline of the national academy of clinical biochemistry (nacb)?
A. Qc and qa are not required when using poc assays
B. Labs that use qualitative poc biomarker assays should confirm results with a
quantitative biomarker test
