Question

Question 19

At the end of marathon, a 50 y/o male ex-smoker reports chest pain. He is brought to the ER where his CK is 2x the upper limit of normal but myoglobin, CK-MB, troponin T and EKG is normal. Six hours after arrival, total CK has risen but CK-MB, troponin T are still normal and the EKG is still normal. What is the explanation for these findings?

		angina
		march hemoglobinuria
		skeletal muscle injury
		acute coronary syndrome

Question 20

On physical examination, a child demonstrated motor weakness and enlarged tonsils and adenoids. Given the following results for a fasting sample, predict the most likely lipoprotein abnormality.
Total cholesterol = 134 mg/dL
HDL cholesterol = 2 mg/dL
Triglycerides = 115 mg/dL
Plasma appearance clear

		abetalipoproteinemia
		familial dysbetalipoproteinemia
		analphalipoproteinemia
		hypobetalipoproteinemia

Answer 1

Question 19

Acute Coronary Syndrome

Levels of CK can rise after a heart attack, skeletal muscle injury, strenuous exercise, or drinking too much alcohol, and from taking certain medicines or supplements.As the patient is an ex-smoker and reports symptoms of Chestpain and CK 2x times upper limit indicates Acute Coronary Syndrome.CK levels rises in the initial stage of Muscle damage prior to CKMB,troponin and EKG changes.

Question 20

HDL cholesterol = 2 mg/dL

HDL of greater than 35 mg/dL less than 35 mg/dL puts your teen at higher risk for heart disease.