Upon getting his annual physical exam, a 55-year-old man is noted to have a body mass index of 33 (above 30 = obese) and high blood pressure
His blood chemistry indicates hyperlipidemia, hypertriglyceridemia, and hypercholesterolemia. Furthermore, his fasting blood glucose level is 120 mg/dL (elevated). His physician suspects type 2 diabetes and orders a glucose tolerance test. The patient drinks 75 g of glucose and then has his blood glucose measured at 2 hr. The 2-hr glucose level is 190 mg/dL (high end of glucose intolerance range; the diagnosis of diabetes is equal to or greater than 200 mg/dL).
The most likely reason for this patient's glucose intolerance is:
A. autoimmune destruction of the ? cells
B. impairment of ATP-sensitive K+ channel
C. insulin resistance
D. low leptin levels
E. impairment of GLUT2 function
ANS: C
You might also like to view...
The function of the dartos and cremaster muscles is to
A. produce erections. B. move sperm along the ductus deferens. C. attach the penis to the body wall. D. regulate the temperature of the testes. E. help the testes descend into the scrotum prior to birth.
Which of the following small intestine cells secrete lysozyme?
a) Goblet cells b) Absorptive cells c) Mucosa cells d) Paneth cells e) S cells
Answer the following statements true (T) or false (F)
1. In one square inch of skin, there are more oil glands than sweat glands. 2. In one square inch of skin, there are about twice as many pressure sensors as heat sensors. 3. The hypodermis is the layer of the skin found between the epidermis and the dermis. 4. Strong, tough collagen fibers can be found in both the dermis and epidermis of the skin. 5. Hair in certain parts of the body is stimulated to grow by the presence of hormones.
The trophoblast cells of the chorion secrete ________, which maintains the corpus luteum, thereby preventing menstruation.
A. hCG B. FSH C. GnRH D. ACTH