The home health nurse recommends that a patient with respiratory problems install a carbon monoxide detector in the home. What is the rationale for the nurse's action?
a. Carbon monoxide detectors are required by law in the home.
b. Carbon monoxide tightly binds to hemoglobin, causing hypoxia.
c. Carbon monoxide signals the cerebral cortex to cease ventilations.
d. Carbon monoxide combines with oxygen in the body and produces a deadly toxin.
ANS: B
Carbon monoxide binds tightly to hemoglobin; therefore, oxygen is not able to bind to hemoglobin and be transported to tissues, causing hypoxia. A carbon monoxide detector is not required by law, does not signal the cerebral cortex to cease ventilations, and does not combine with oxygen but with hemoglobin to produce a toxin.
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