A nurse is collecting data from a client who has shallow respirations and a respiratory rate of 9/min.
Which of the following acid-base imbalances should the nurse expect?
Metabolic acidosis.
Respiratory alkalosis.
Metabolic alkalosis.
Respiratory acidosis.
The Correct Answer is D
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. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Skipping coffee on the morning of the exercise ECG stress test is a good idea as caffeine can affect heart rate and blood pressure, but it doesn't necessarily indicate the need for further instructions.
Choice B rationale:
Getting 8 hours of sleep the night before the test is a positive choice and promotes overall well-being, but it is not a specific indicator of needing further instructions for the test.
Choice C rationale:
Not smoking before the test is an appropriate action, as smoking can also affect heart rate and blood pressure during the test. However, it does not indicate a need for further instructions.
Choice D rationale:
Expecting to feel chest pain during an exercise ECG stress test is not correct and indicates a need for further instructions. Chest pain during the test can be a sign of cardiovascular issues and should be reported immediately.
Correct Answer is A
Explanation
The correct answer is A. Captopril.
Choice A: Captopril Captopril is an angiotensin-converting enzyme (ACE) inhibitor used to treat conditions like high blood pressure and heart failure. One of the common side effects of ACE inhibitors is a persistent, non-productive cough. This cough occurs due to the accumulation of bradykinin, a potent peptide that can induce coughing.
Choice B: Metoprolol Metoprolol is a beta-blocker used to treat high blood pressure and heart failure. Common side effects include dizziness, slow or irregular heartbeat, and unusual tiredness or weakness. However, it is not typically associated with a non-productive cough.
Choice C: Furosemide Furosemide is a loop diuretic used to treat fluid retention (edema) in people with congestive heart failure, liver disease, or a kidney disorder. While it can cause side effects like diarrhea, constipation, and loss of appetite, a non-productive cough is not a typical side effect of Furosemide.
Choice D: Digoxin Digoxin is used to treat heart failure and irregular heartbeat. Common side effects include dizziness, slow or irregular heartbeat, and unusual tiredness or weakness. However, a non-productive cough is not a typical side effect of Digoxin.
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