Research generally supports the theory that caffeine may enhance performance in long distance endurance events. Which of the following is the LEAST likely hypothesis?
A. It may decrease the perception of effort during exercise
B. It decreases the use of both free fatty acids and muscle glycogen
C. It may exert a direct effect on the muscles to increase muscle contractile force
D. It stimulates the release of epinephrine from the adrenal gland
E. It may exert a psychological stimulating effect
Answer: B
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"Skin and bone appearance" would reflect which of the following forms of nutritional status assessment?
a. Anthropometric b. Biochemical c. Clinical d. Dietary
In the average healthy person, about how much time is required by the liver to process the alcohol in a typical drink?
a. 15 minutes b. 30 minutes c. 1 hour d. 2 hours
Medical History: A.R. is a healthy 51-year old premenopausal Caucasian woman with pallor who is employed full-time in an office job. She had a pancreatic cyst removed six years ago. She was asymptomatic until one year ago when she developed acute pancreatitis flare-ups after consuming fatty foods. The condition was attributed to scarring at the pancreatic duct, which secretes pancreatic lipase,
and was accompanied by severe abdominal pain radiating to her back, vomiting, and steatorrhea. She was placed on oral pancreatic lipase enzyme tablets (Pancrease™) that digest fat, and was also prescribed to follow a "low-fat diet." The medication and diet help to reduce her symptoms, and she notes that flare-ups generally only occur when she eats too much fat. Anthropometric: Ht: 5'2 . Wt: 156 lbs. Wt 1 yr ago: 199 lbs. Frame size: Medium. Clinical/Labs: A.R.'s serum vitamin D was low (20 ng/mL; normal is 25-80 ng/mL), but all other labs were within normal limits when she last visited her internal medicine physician several months ago. She was placed on a 5,000-IU vitamin D supplement, to be reduced to a 2,000-IU vitamin D supplement thereafter; she takes no other vitamins or minerals. Other medications include Synthroid and Aygestin. Current Chief Complaints: A.R.'s current problems include constipation and dry skin. Diet: "My usual grocery list consists of boneless chicken breasts, turkey, pork chops (infrequently), strip steak (infrequently), 90/10 ground beef, pasta (half whole-wheat, half regular), tomatoes and sauce to make pasta sauce, 90 percent fat-free lunch meat ham or turkey, brown rice, steamable microwave vegetables, red and green lettuce, tomatoes, onions, cereal, blueberries if on sale, apples, tangerines, red licorice, bread, crackers, and canned soup. I am concerned about not having enough protein or iron because I am afraid to eat very much red meat. The foods I miss the most include iced tea, which I skip because of caffeine—I am getting bored with water. I like to bake and miss baked goods, and I also miss cheese—I am afraid it is too high in fat. I have a hard time figuring out what to pack for lunch. The restaurants I go to if I do go out are Chick-Fil-A, Panera, Viva, a local diner, and an Italian restaurant. I like Italian and Mexican food. Usually if I do eat out it is for lunch but it is sometimes hard to figure out something safe to eat..." Dairy foods: Twice a day, drinks 2 8-oz glasses of 1% milk. Fruits: 1 cup per day. A.R.'s steatorrhea will promote the loss of: a. vitamin A. b. vitamin D. c. vitamin E. d. vitamin K. e. all of the above
Cook with Cholelithiasis: Marcia Brown is a 42-year-old Pima Indian who works as a cook in a casino in Arizona. She has just been diagnosed with cholelithiasis. She is 5'4" tall and once weighed 210 pounds. One year ago, she underwent gastric bypass
surgery and has lost 75 pounds. For several months, she had been experiencing episodes of pain in the right upper part of her abdomen. The pain usually began after eating and lasted for several hours. Lately she began to experience nausea and vomiting with the pain and began to run a fever. What are Marcia's risk factors for cholelithiasis?