The nurse is providing care to a patient in the post anesthesia care unit (PACU) who lost a large amount of blood during a surgical procedure. Which assessment finding correlates to this postoperative complication?
Hypertension
Hypothermia
Tachycardia
Bradypnea
The Correct Answer is C
A. Hypertension: Blood loss leads to hypovolemia, which usually causes hypotension, not hypertension.
B. Hypothermia: While hypothermia can occur postoperatively, it is not the most direct result of blood loss.
C. Tachycardia: Blood loss leads to decreased circulating volume, triggering tachycardia as a compensatory response to maintain oxygen delivery.
D. Bradypnea: Severe blood loss is more likely to cause tachypnea (rapid breathing) rather than slow respirations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. HCO3- 30 mEq/L: In chronic respiratory acidosis, the kidneys compensate by increasing bicarbonate (HCO3-) to buffer excess CO2.
B. Potassium 3.3 mEq/L: Respiratory acidosis is typically associated with hyperkalemia (high potassium), not hypokalemia (low potassium).
C. PaCO2 50 mm Hg: Respiratory acidosis is caused by CO2 retention, leading to an elevated PaCO2 (>45 mm Hg).
D. pH 7.45: A pH of 7.45 is normal or slightly alkalotic. Respiratory acidosis is characterized by a pH below 7.35.
Correct Answer is B
Explanation
A. Restricts the client's ability to eat, speak, or drink: Unlike a mask, a nasal cannula allows the client to eat, drink, and speak freely.
B. Delivers a low concentration of oxygen: A nasal cannula delivers a low oxygen concentration (24%-44%) at flow rates of 1-6 L/min.
C. Delivers a constant rate of a specific concentration of oxygen: Oxygen concentration varies depending on the client's breathing pattern with a nasal cannula, making it not a fixed concentration delivery system.
D. Delivers a high concentration of oxygen: High-flow oxygen delivery systems like a non-rebreather mask or Venturi mask are needed for high oxygen concentrations.
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