An unresponsive client was brought to the emergency room and had an arterial blood gas drawn. Ten minutes later, the laboratory calls with the following results: PaO2 74%, pH 7.22, PaCO2 85 mm Hg, and HCO3 23 mEq/L. The nurse interprets the results as indicating which imbalance?
Respiratory acidosis without compensation
Metabolic acidosis with full compensation
Respiratory acidosis with partial compensation
Metabolic acidosis without compensation
The Correct Answer is C
A. Respiratory acidosis without compensation: The pH of 7.22 indicates acidosis, but the HCO3 level of 23 mEq/L suggests that compensation is occurring because the HCO3 is within the normal range for respiratory acidosis.
B. Metabolic acidosis with full compensation: The high PaCO2 level is more indicative of respiratory issues, not metabolic acidosis. Additionally, compensation for metabolic acidosis would show elevated HCO3.
C. Respiratory acidosis with partial compensation: The elevated PaCO2 and low pH indicate respiratory acidosis. The normal HCO3 level suggests partial compensation by the kidneys.
D. Metabolic acidosis without compensation: The elevated PaCO2 and normal HCO3 suggest respiratory acidosis rather than metabolic acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Calcium: Thiazide diuretics can increase calcium levels, but the primary concern is the potential loss of potassium.
B. Selenium: This is not directly related to thiazide diuretic therapy and does not address the primary electrolyte imbalance.
C. Potassium: This is the correct choice. Thiazide diuretics can cause hypokalemia (low potassium levels). Encouraging potassium-rich foods helps to counteract this side effect.
D. Bicarbonate: While bicarbonate can be important for acid-base balance, it is not the primary concern with thiazide diuretics, which typically affect potassium levels.
Correct Answer is A
Explanation
A. Discontinue the intravenous line: The presence of tenderness and a red streak suggests phlebitis or possibly an early sign of infection. The first and most important step is to discontinue the IV line to prevent further irritation or infection.
B. Complete an incident report: While documentation is important, it is not the first action to take. Immediate attention should be given to the client’s physical condition before completing any paperwork.
C. Start a new IV in the right hand: While starting a new IV is necessary for continued therapy, the first action should be to remove the current IV line to prevent further complications. Starting a new IV can be done immediately afterward.
D. Place a warm compress over the site: A warm compress can help alleviate pain and reduce inflammation, but the priority action is to discontinue the IV line to stop further damage or infection.
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