
11. The following cause a decrease in the arterial partial pressure of oxygen:
a) anaemia b) carbon monoxide c) hyperventilation d) a rise in physiological dead-space e) old age
12. Iron absorption is dependent on:
a) total body vitamin C b) HCl in the stomach c) an intact colonic mucosa d) total body iron e) erythropoietin levels in the blood
13. If a normal person hyperventilates for 2 hours to an arterial PCO2 of 4 kPa:
a) the cerebral blood flow decreases b) the standard bicarbonate decreases c) the Hb-oxygen dissociation curve shifts to the left d) the ionised calcium concentration decreases e) the plasma bicarbonate increases
14. Hypoglycaemia may result from:
a) excessive insulin secretion b) alpha-adrenergic stimulation c) beta-adrenergic stimulation d) glucagon secretion e) hypothermia
15. Ingested lipid:
a) is important in prostaglandin synthesis b) increases in the faeces with a decrease in bile secretion c) is absorbed via the intestinal lymphatics d) is mainly in the form of triglycerides e) can be used as a source of ATP production
ANSWERS
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ArticleDate:20060214
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