A patient is demonstrating signs of oxygenation failure. The nurse realizes that this patient's primary problem is
1. acidosis.
2. hypoxemia.
3. hypercapnia.
4. respiratory alkalosis.
2
Rationale: Hypoxemia is the key to oxygenation failure, usually less than 60 mm Hg. Carbon dioxide diffuses 20 times faster than oxygen and remains normal despite moderate to severe hypoxemia so hypercapnia is not seen in oxygenation failure. If the underlying condition worsens, such as pneumonia, the PaCO2 will rise and result in acidosis and not alkalosis.
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The nurse is assisting with a community education program about stroke prevention. Which of the following are nonmodifiable risk factors for stroke that the nurse should include? (Select all that apply.)
a. Gender b. Diabetes c. Heredity d. Elevated blood lipids e. Smoking f. Obesity
Which statement is true about relationships of older adults?
a. Loneliness is evidence of self-centeredness and unwillingness to love. b. A person may be lonely even when surrounded by other people. c. Hostile behavior indicates that a person prefers to be left alone. d. A pet cannot substitute for human attention.
A nurse is reviewing the effects of adrenergic drugs on the body. The nurse demonstrates understanding of this group of drugs by identifying that which of the following would occur if the drug stimulates beta-1 receptors?
A) Vasoconstriction of peripheral blood vessels B) Decreased gastrointestinal tract secretions C) Increased force of myocardial contractions D) Bronchodilation
The nurse is caring for a stuporous client in the intensive care unit. Which assessment finding is documented to reflect an improvement in the client's level of consciousness?
A) Conscious B) Somnolent C) Stuporous D) Semicomatose