cell inj5 - zalato5

[ArchivalUser]

A 79-year-old man has a large myocardial infarction involving much of the left ventricular free wall. He develops congestive heart failure (CHF) with decreased cardiac output. Now, a year later, his CHF is worsening. By echocardiography there is a large, bulging akinetic area typical for a left ventricular aneurysm. Which of the following laboratory tests on serum would best indicate poor peripheral tissue perfusion in this patient?

A Elevated troponin I

B Increased sodium

C Elevated lactate

D Increased hematocrit

E Increased sedimentation rate

[ArchivalUser]

dd

[ArchivalUser]

cc

[ArchivalUser]

© CORRECT. Under conditions of poor tissue perfusion, there will be more anaerobic glycolysis and more acidosis in cells throughout the body. The blood lactate rises in this condition.