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CHAPTER TWENTY-ONE
Water, Electrolyte, and Acid-Base Balance
OUTCOMES 14.3, 19.6, 19.7, 21.5, 21.6
1. An elderly, semiconscious patient is tentatively diagnosed as
having acidosis. What components of the arterial blood will be
most valuable in determining if the acidosis is of respiratory
origin?
OUTCOMES 15.4, 15.5, 16.3, 21.2
2. If the right ventricle of a patient’s heart is failing, increasing
the systemic venous pressure, what changes might occur in the
patient’s extracellular fl
uid compartments?
OUTCOMES 17.2, 17.6, 17.9, 21.4, 21.6
3. Radiation therapy may damage the mucosa of the stomach
and intestines. What effect might this have on the patient’s
electrolyte balance?
INTEGRATIVE ASSESSMENTS/CRITICAL THINKING
OUTCOMES 17.6, 17.9, 19.5, 21.5, 21.6
4. Describe what might happen to the plasma pH of a patient as a
result of:
a. prolonged diarrhea.
b. suction of the gastric contents.
c. hyperventilation.
d. hypoventilation.
OUTCOMES 19.5, 21.5, 21.6
5. A student hyperventilates and is disoriented just before an
exam. Is this student likely to be experiencing acidosis or
alkalosis? How will the body compensate in an effort to
maintain homeostasis?
2
1
6
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WEB CONNECTIONS
Be sure to visit the text website at
www.mhhe.com/shier12
for
answers to chapter assessments, additional quizzes, and interactive
learning exercises.
ANATOMY & PHYSIOLOGY REVEALED
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