A nurse is caring for a client who has heart failure.
The client states she has recently been bothered by a non-productive cough.
Which of the following medications should the nurse associate with the non-productive cough?

Choice A rationale:

The nurse should include the statement, "Lifelong treatment with this medication is necessary.”. This is because rifampin is often part of a multidrug regimen used to treat tuberculosis, and treatment typically lasts for several months, sometimes up to a year. It is crucial for the client to understand the need for long-term treatment to ensure the successful eradication of the tuberculosis bacteria from their system.

Choice B rationale:

The statement, "The medication causes amenorrhea if taken along with an oral contraceptive," is not accurate. Rifampin is known to interact with oral contraceptives, decreasing their effectiveness, but it does not directly cause amenorrhea. The correct teaching should focus on the need for alternative or additional contraceptive methods while taking rifampin.

Choice C rationale:

The statement, "You should wear glasses instead of contacts while taking this medication," is not directly related to rifampin. Rifampin can cause certain ocular side effects, but it does not necessarily require the client to switch from contacts to glasses. This advice would depend on the individual's eye health and any specific concerns.

Choice D rationale:

The statement, "A yellow tint to the skin is an expected reaction to the medication," is incorrect. While rifampin can cause a harmless side effect of orange-red discoloration of body fluids, such as urine, sweat, and tears, it does not typically cause a yellow tint to the skin. The nurse should clarify this misconception with the client.

Choice A rationale:

A respiratory rate of 9/min and shallow respirations are indicative of hypoventilation, which can lead to an accumulation of carbon dioxide (CO2) in the blood. This condition results in respiratory acidosis (Choice D). In respiratory acidosis, the arterial pH is decreased (acidic) while the PaCO2 (partial pressure of carbon dioxide) is elevated.

Choice B rationale:

Respiratory alkalosis (Choice B) is characterized by a low PaCO2 and an elevated pH due to hyperventilation. Shallow respirations and a respiratory rate of 9/min do not align with this condition, as it typically involves rapid and deep breathing.

Choice C rationale:

Metabolic alkalosis (Choice C) results from a primary excess of bicarbonate (HCO3-) in the blood and is not associated with the given respiratory patterns. Shallow respirations and a low respiratory rate are more likely to lead to an accumulation of CO2, causing respiratory acidosis (Choice D).

Choice D rationale:

The correct answer is choice D. Shallow respirations and a respiratory rate of 9/min indicate hypoventilation, leading to an accumulation of CO2 in the blood. This condition results in respiratory acidosis, where the arterial pH is decreased. The body's compensatory response is to retain bicarbonate to normalize pH, but this can result in an elevated HCO3- level. The primary acid-base imbalance in this case is respiratory acidosis. .