A woman was brought to the emergency department of a hospital after she fell into the ground and hurt her left leg. She is noted to be tachycardic and tachypneic. Painkillers were carried out to lessen her pain. Suddenly, she started complaining that she is still in pain and now experiencing muscle cramps, tingling, and paraesthesia. Measurement of arterial blood gas reveals pH 7.6, PaO2 120 mm Hg. PaCO2 31 mm Hg, and HCO3 25 mmol/L.
What does this mean?
Respiratory Acidosis, Partially Compensated
Respiratory Alkalosis, Uncompensated
Metabolic Alkalosis. Uncompensated
Metabolic Alkalosis. Partially Compensated
The Correct Answer is B
A. This is incorrect because the pH is indicative of alkalosis, not acidosis, and the body has not compensated.
B. The arterial blood gas (ABG) values provided indicate a pH of 7.6, which is above the normal range (7.35-7.45), suggesting alkalosis. The PaCO2 is low at 31 mm Hg, indicating hyperventilation, which is a respiratory process. Since the HCO3 is normal at 25 mmol/L, it suggests that the metabolic system is not the cause of the alkalosis. The body has not had time to compensate for the high pH with renal adjustments to the bicarbonate level, which would be seen in a partially compensated state.
C. This is incorrect because the bicarbonate level is normal, suggesting the metabolic system is not the cause.
D. This is incorrect because the bicarbonate level is normal, suggesting the metabolic system is not the cause.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Consuming excessive animal protein can increase the risk of kidney stones due to the metabolism of protein leading to increased excretion of calcium and oxalate.
B. Restricting calcium intake is not recommended for preventing calcium oxalate kidney stones. Adequate calcium intake from dietary sources can actually help prevent kidney stone formation by binding to oxalate in the intestines and reducing its absorption.
C. High doses of vitamin C can increase oxalate levels in the urine, which can contribute to the formation of calcium oxalate kidney stones.
D. Adequate fluid intake, typically recommended at least 3 liters (about 100 ounces) per day, helps dilute urine and reduce the concentration of stone-forming substances, thereby reducing the risk of kidney stone formation.
Correct Answer is B
Explanation
A. Placing the client in Trendelenburg position is not appropriate in this situation. It may worsen respiratory depression caused by magnesium sulfate.
B. Absent deep-tendon reflexes and respiratory depression are signs of magnesium toxicity.
Discontinuing the medication infusion is essential to prevent further toxicity.
C. While preeclampsia can lead to complications necessitating emergency cesarean birth, the immediate concern here is addressing magnesium toxicity.
D. Assessing maternal blood glucose is not relevant to the management of magnesium toxicity.
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