The nurse is reinforcing teaching for a patient who has a peptic ulcer. Which of the following statements by the patient would indicate a correct understanding of function of hydrochloric acid in gastric juice?
a. Digestion of starch
b. Inactivation of pepsin
c. Destruction of pathogens
d. Maintenance of a pH of 7 to 8
ANS: C
Hydrochloric acid creates the pH of 1 to 2 that is necessary for pepsin to function and to kill most microorganisms that enter the stomach.
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The college health nurse is providing health education for freshmen. Which of the following pieces of information about immunizations is applicable to individuals of this age group?
A) The oral polio should be updated. B) The yearly administration of flu vaccine is recommended. C) The tetanus toxoid must be within 2 years. D) The administration of hepatitis A vaccine is mandatory.
A patient has been scheduled for an ultrasound of the gallbladder the following morning. What should the nurse do in preparation for this diagnostic study?
A) Have the patient refrain from food and fluids after midnight. B) Administer the contrast agent orally 10 to 12 hours before the study. C) Administer the radioactive agent intravenously the evening before the study. D) Encourage the intake of 64 ounces of water 8 hours before the study.
Which of the following releases medication into an area rich in blood vessels?
A. enteric-coated tablets B. spansules C. sublingual tablets D. gelcaps
Explain the key difference between barbiturates and nonbarbiturates.
A. Unlike barbiturates, nonbarbiturates are CNS depressants that contain the barbituric acid ring structure in their chemical makeup. B. Unlike nonbarbiturates, barbiturates are CNS depressants that contain the barbituric acid ring structure in their chemical makeup. C. Barbiturates decrease the activity of GABA, and nonbarbiturates increase the activity of GABA. D. None of the above are correct.