QuestionSBA
QuestionChoice
This is incorrect. CRP is an inflammatory marker which is raised in inflammatory disorders or infections. It is not specific to ischaemic cardiac myocyte damage.
10025947
c
CRP
QuestionChoice
This is incorrect. Actin is a contractile protein present in skeletal muscle that the myosin head attaches to in muscle contraction. It is not released in cardiac myocyte injury.
10025948
d
Actin
QuestionChoice
This is correct. Troponin is a cardiac enzyme that is released following damage to cardiac myocytes. It is elevated in myocardial infarction, however, it can also be raised due to other conditions such as pericarditis or aortic dissection.
10025945
a
Troponin
QuestionChoice
This is incorrect. Raised serum cholesterol levels are a risk factor for the development of coronary artery disease. However, it is not raised secondary to cardiac myocyte damage, making this option incorrect.
10025949
e
Cholesterol
QuestionChoice
This is incorrect. Creatine kinase is released in response to general muscle damage; the specific type released when cardiac muscle is damaged is creatine kinase myocardial band (CK-MB). This is useful in determining whether reinfarction has occurred as it has a shorter half-life than troponin. As this option is creatine kinase, not CK-MB, it is not the single best answer.
10025946
b
Creatine kinase
Concept
Chapter
2693
4070
Troponin
Topic
170
Clinical Chemistry
17587
A 67 year old female patient presents to A&E with central crushing chest pain that radiates down her left arm. She also reports nausea and dizziness but has not yet vomited. Her observations are all within the normal range.

Which of the following blood markers is released following damage to cardiac myocytes?
a