Patient X arrives in the emergency room, and initial CBC and differential blood work resulted in the following: Hemoglobin 12 g/dL (N: 12-16 g/dL), Hematocrit 38% (N: 37-47%), MCV 99 mcm3 (N: 84-96 mcm3), MCH 27 pg (N: 27-31 pg), MCHC 28 g/dL (N: 31.5-36 g/dL), Serum Vitamin B12 84 pg/mL (N: 100-700 pg/mL), and Serum folate 4 ng/mL (N: 2-20 ng/mL). From this information, the dietitian suspects
that the patient may have a vitamin B12 deficiency. What additional lab value could she check to further support her suspicion?
a. Methylmalonic acid
b. Prothrombin time
c. RBC folate
d. Zinc protoporphyrin
a
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Excessive consumption of soft drinks, orange juice, and sports drinks increases risk for development of caries because they contain sugar and ____
a. a low pH b. organic bases c. resistant starch d. insufficient fluoride e. excess calcium ANS: A
Gastrin _______.
A. inhibits secretion of HCl B. stimulates secretion of pepsinogen C. decreases stomach motility D. two of the above
?-hydroxy-?-methylbutyrate (HMB) supplements have been shown to be safe and effective for increasing muscle size and strength in trained male athletes
Indicate whether the statement is true or false
As a rule of thumb, experts recommend a post-exercise fluid intake as soon after exercise as practical of approximately:
a. 0.5 L of fluid per kg body weight lost b. 1.0 L of fluid per kg body weight lost c. 1.5 L of fluid per kg body weight lost d. 1 pint of fluid for each pound of weight lost