Community Health HESI

Correct Answer: A

Rationale: A respiratory rate of 20 breaths per minute indicates effective oxygen therapy. In pneumonia, the respiratory rate typically increases due to the body's effort to improve oxygenation. Option B (pH of 7.35) is related to acid-base balance, not specifically indicating oxygen therapy effectiveness. Option C (oxygen saturation of 92%) is below the normal range (95-100%), suggesting the need for oxygen therapy. Option D (clear breath sounds) is a positive finding but not a direct indicator of oxygen therapy effectiveness.

Correct Answer: C

Rationale: A respiratory rate of 26 breaths per minute is an abnormal finding and indicates that the client is experiencing respiratory distress, requiring immediate intervention. This rapid respiratory rate can signify inadequate oxygenation and ventilation. Oxygen saturation of 88% is low but not as immediately concerning as a high respiratory rate, which indicates the body is compensating for respiratory distress. The use of accessory muscles for breathing and a barrel-shaped chest are typical findings in clients with COPD but do not indicate an immediate need for intervention as they are more chronic in nature and may be seen in stable COPD patients.

Correct Answer: D

Rationale: Nitroprusside (Nipride) is a vasodilator used to rapidly reduce blood pressure in hypertensive emergencies.

Correct Answer: D

Rationale: A serum sodium level of 130 mEq/L indicates hyponatremia, which requires immediate intervention in a client with SIADH.

Correct Answer: C

Rationale: Middle-aged adults are at a higher risk for developing hypertension and can benefit most from preventive measures.