Correct Answer: B

Rationale: ST-segment depression can indicate hypokalemia, affecting the heart's electrical conduction. Hypokalemia leads to alterations in the repolarization phase of the cardiac action potential, resulting in ST-segment depression on the ECG.

Correct Answer: C

Rationale: Pain that worsens with breathing in can indicate pleuritic chest pain, which is non-cardiac in nature. This specific question helps in differentiating non-cardiac causes from cardiac causes of chest pain, as cardiac pain typically does not worsen with breathing.

Correct Answer: A

Rationale: When using a metered-dose inhaler, the client should take a deep breath and then exhale just before administration. This technique helps ensure that the medication is inhaled effectively. By exhaling before administration, the client can fully inhale the medication into the lungs, maximizing its therapeutic effects.

Correct Answer: B

Rationale: It is important for the healthcare professional to explore the sources of stress with the client to develop an effective stress management plan tailored to the individual's specific stressors. This approach can help in identifying triggers, implementing appropriate interventions, and supporting the client's overall well-being.

Correct Answer: D

Rationale: Fresh strawberries, steamed vegetables, and baked fish constitute a meal low in saturated fats and cholesterol, making it a suitable choice for a client with CAD. This meal aligns with dietary recommendations to support heart health and manage CAD.