The nurse analyzes the results of a patient's arterial blood gases (ABGs). Which finding would require immediate action?

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Question 1 of 5

The nurse analyzes the results of a patient's arterial blood gases (ABGs). Which finding would require immediate action?

Correct Answer: D

Rationale: While all the values are abnormal, the low PaO2 level of 59 mm Hg indicates that the patient is at a critical point on the oxyhemoglobin dissociation curve. At this level, a small decrease in PaO2 can lead to a significant drop in oxygen saturation and compromise tissue oxygenation. Therefore, immediate intervention is necessary to improve the patient's oxygenation status. Choice A (HCO3 of 31 mEq/L) may indicate metabolic alkalosis or compensation for respiratory acidosis; however, it does not require immediate action in this scenario. Choice B (SaO2 of 92%) is slightly low but not critically low to require immediate action. Choice C (PaCO2 of 31 mm Hg) is within the normal range and does not indicate immediate danger to the patient.

Question 2 of 5

A patient in metabolic alkalosis is admitted to the emergency department, and pulse oximetry indicates that the O2 saturation is 94%. Which action should the nurse take next?

Correct Answer: C

Rationale: In a patient with metabolic alkalosis and an O2 saturation of 94%, placing the patient on high-flow oxygen is the correct action. Even though the O2 saturation seems adequate, metabolic alkalosis causes a left shift in the oxyhemoglobin dissociation curve, reducing oxygen delivery to tissues. Therefore, providing high-flow oxygen can help compensate for this. Administering bicarbonate would exacerbate the alkalosis. While completing a head-to-toe assessment and obtaining repeat ABGs are important interventions, the priority in this scenario is to improve oxygen delivery by placing the patient on high-flow oxygen.

Question 3 of 5

The laboratory has just called with the arterial blood gas (ABG) results on four patients. Which result is most important for the nurse to report immediately to the health care provider?

Correct Answer: D

Rationale: The correct answer is D: pH 7.31, PaO2 91 mm Hg, PaCO2 50 mm Hg, and O2 sat 96%. These ABG results indicate uncompensated respiratory acidosis, a critical condition that requires immediate attention. In respiratory acidosis, there is an excess of carbon dioxide in the blood, leading to a decrease in pH. The other options present normal or near-normal ABG values, indicating adequate oxygenation and ventilation. Therefore, these values would not be as urgent to report compared to the patient with respiratory acidosis in option D.

Question 4 of 5

The nurse assesses a patient with chronic obstructive pulmonary disease (COPD) who has been admitted with increasing dyspnea over the last 3 days. Which finding is most important for the nurse to report to the healthcare provider?

Correct Answer: A

Rationale: The correct answer is 'Respirations are 36 breaths/minute.' An increased respiratory rate is a crucial sign of respiratory distress in patients with COPD, necessitating immediate interventions like oxygen therapy or medications. The other options are common chronic changes seen in COPD patients. Option B, the 'Anterior-posterior chest ratio is 1:1,' is related to the barrel chest commonly seen in COPD due to hyperinflation. Option C, 'Lung expansion is decreased bilaterally,' is expected in COPD due to air trapping. Option D, 'Hyperresonance to percussion is present,' is typical in COPD patients with increased lung volume and air trapping.

Question 5 of 5

Using the illustrated technique, the healthcare provider is assessing for which finding in a patient with chronic obstructive pulmonary disease (COPD)?

Correct Answer: D

Rationale: The technique for palpation for chest expansion is shown in the illustrated technique. Reduced chest expansion would be noted on palpation of a patient's chest with COPD. Hyperresonance would be assessed through percussion, not palpation. Accessory muscle use and tripod positioning would be assessed by inspection, not palpation.

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