Which medication is most effective in treating acute pulmonary edema as a result of CHF?

Correct Answer: B

Rationale: Furosemide, a loop diuretic, rapidly reduces fluid overload in acute pulmonary edema due to CHF.

Correct Answer: B

Rationale: Without the ECG, the answer key indicates 'b'. Atrial fibrillation features irregular R-R intervals and absent P waves.

Correct Answer: B

Rationale: When using oxygen at home with Chronic Obstructive Pulmonary Disease (COPD), it is important to avoid materials that generate static electricity. Static electricity can create sparks, which can potentially ignite the oxygen and cause a fire. Therefore, it is crucial to ensure that the environment is free from static-generating materials to maintain safety while using oxygen at home.

Correct Answer: B

Rationale: Peak expiratory flow rate measures forceful exhalation to assess airway obstruction, typically done standing, not lying down.