A nurse is admitting a client who has status asthmaticus. The client's ABG results are Ph:7.31, Pa02:74mm Hg, PaC02: 56 mmHg and HCO-3: 26mEq/L The nurse should interpret these laboratory values as which of the following imbalances?
Metabolic alkalosis
Respiratory acidosis
Metabolic acidosis
Respiratory alkalosis
The Correct Answer is B
The pH value is less than the normal range of 7.35-7.45, indicating acidosis. The PaCO2 value is elevated above the normal range of 35-45 mmHg, indicating respiratory acidosis. The PaO2 value is lower than normal, but not significantly low enough to indicate hypoxemia. The HCO3- level is within the normal range, but not significantly high enough to indicate metabolic compensation for respiratory acidosis.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The nurse should act on the order to insert a 16 French retention catheter first. The patient's markedly distended bladder and agitated and confused state suggest acute urinary retention, which can be relieved by inserting a catheter to drain the urine. This is a priority intervention as urinary retention can lead to serious complications such as bladder rupture, hydronephrosis, and renal failure. Once the catheter is inserted and the patient's bladder is drained, the healthcare provider can order further tests such as an IVP or blood tests to assess renal function. The order for lorazepam can be addressed after the catheter is inserted and the patient's urinary retention is addressed.
Correct Answer is D
Explanation
One of the hallmarks of adrenal insufficiency is dehydration and decreased urinary output, which can lead to electrolyte imbalances such as hyperkalemia and hyponatremia. As treatment begins to take effect, the patient's fluid and electrolyte balance should improve, leading to an increase in urinary output. Acute adrenal insufficiency, also known as the Addisonian crisis, is a life-threatening condition caused by a sudden decrease in cortisol and aldosterone hormones. Treatment usually involves the administration of intravenous glucocorticoids and mineralocorticoids to replace the deficient hormones.
Decreasing serum sodium (a) and decreasing blood glucose (b) are not signs of improvement but rather indicative of continued adrenal insufficiency. Decreasing serum potassium (c) is also not a sign of improvement as it could indicate that the patient is developing hyperkalemia, which is a potential complication of adrenal crisis.
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