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 C
Explanation
The correct answer is choice C: “I will follow a diet high in calories and protein.”
Here are the rationales for each choice:
Choice A rationale:“I will drink about 34 ounces of fluid every day.” While staying hydrated is important for overall health, this statement does not specifically address a key self-management strategy for emphysema. Adequate fluid intake can help thin mucus, making it easier to expel, but it is not the most critical aspect of managing emphysema.
Choice B rationale:“I will inhale slowly through pursed lips to help me breathe better.” This statement is incorrect because the correct technique is toexhalethrough pursed lips, not inhale. Pursed-lip breathing helps to keep the airways open longer, reduce shortness of breath, and improve the exchange of oxygen and carbon dioxide.
Choice C rationale:“I will follow a diet high in calories and protein.” This is the correct answer. Emphysema can increase the body’s energy expenditure due to the effort required for breathing. A diet high in calories and protein helps maintain muscle mass and provides the necessary energy to support respiratory function.
Choice D rationale:“I will lie on my stomach to practice abdominal breathing every day.” This statement is not recommended for emphysema management. While abdominal or diaphragmatic breathing can be beneficial, lying on the stomach is not a typical position for practicing this technique. It is usually done while sitting or lying on the back.
Correct Answer is D
Explanation
The correct answer is Choice D: Headache.
Rationale for Choice D (Headache): Hyponatremia, defined as a serum sodium level below 135 mEq/L, can lead to various neurological symptoms due to the altered osmotic pressure in the brain cells. When the sodium level drops below normal, water moves into the cells, causing them to swell, which can lead to increased intracranial pressure and subsequent headaches. Therefore, a client with a sodium level of 128 mEq/L is likely to experience headaches as a manifestation of hyponatremia.
Rationale for other choices:
Choice A: Hyporeflexia Hyporeflexia refers to diminished or absent reflexes. While hyponatremia can affect neurological function, hyporeflexia is not a typical manifestation. Instead, hyperreflexia may occur in severe cases due to cerebral edema and increased intracranial pressure.
Choice B: Constipation Constipation is not a common manifestation of hyponatremia. Gastrointestinal symptoms such as nausea, vomiting, and abdominal cramping may occur, but constipation is not typically associated with sodium imbalances.
Choice C: Increased appetite Hyponatremia does not typically cause increased appetite. Instead, gastrointestinal symptoms such as nausea and anorexia are more commonly observed. Increased appetite is not directly related to sodium levels but may be seen in conditions such as hyperthyroidism or certain medications.
Therefore, based on the provided data and typical manifestations of hyponatremia, the correct answer is Choice D: Headache. This is because headaches are a common neurological symptom associated with low sodium levels and increased intracranial pressure.
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