A 64-year-old man presents to the clinic with generalized weakness, difficulty getting out of a chair and lifting objects above his head, and a 15-pound weight loss. He has a blue-purple rash on his eyelids and knuckles, and his proximal muscle strength is rated 4 out of 5. Laboratory investigations reveal an elevated creatinine kinase (CK) level. He is started on prednisone therapy. Which of the following is the most important in monitoring response to therapy?
Atesting of muscle strength
Bsedimentation rates
CEMG
Dserum muscle enzymes (CK)
Both the liver and muscle contain glycogen, yet, unlike the liver, muscle is not capable of contributing glucose to the circulation. What is the reason for this?
AGlycolytic activity consumes all of the glucose it generates, preventing release into circulation.
BDoes not have the enzyme glucose-1-phosphatase.
CDoes not have the enzyme glycogen phosphorylase.
DDoes not have the enzyme glucose-6-phosphatase
In a patient who has been in a state of starvation for 72 hours, which of the following is the primary mechanism for maintaining blood glucose levels?
AIncreased gluconeogenesis
BIncreased protein degradation
CIncreased glycogenolysis
DIncreased ketosis due to breakdown of fats
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