Correct Answer: B

Rationale: The correct technique for pursed-lip breathing involves inhaling slowly through the nose and exhaling slowly through pursed lips. This technique helps improve expiration and reduce air trapping. Breathing in quickly, holding the breath, or breathing in and out through pursed lips does not align with the correct method of pursed-lip breathing.

Correct Answer: A

Rationale: There is a drug-food interaction between statins and grapefruit that can lead to acute kidney failure. The client has elevated renal laboratory results, indicating kidney involvement. The nurse should ask if the client consumes grapefruit or grapefruit juice. While dehydration can elevate BUN, the increase in creatinine is more specific for kidney injury.

Correct Answer: A

Rationale: During an acute exacerbation of asthma, the priority is to administer a short-acting beta2-agonist like Albuterol (Proventil) first. Albuterol acts quickly to dilate the airways and provide immediate relief of bronchospasm. Ipratropium (Atrovent) is an anticholinergic that can be used as an adjunct therapy. Salmeterol (Serevent) is a long-acting beta2-agonist intended for maintenance therapy, not for acute exacerbations. Fluticasone (Flovent) is a corticosteroid used for long-term asthma control and should not be the initial medication given during an acute exacerbation.

Correct Answer: B

Rationale: Immediate intervention is required if the client exhibits tracheal deviation as it could indicate a tension pneumothorax, a life-threatening condition that requires prompt attention to prevent respiratory compromise. Production of pink sputum may indicate bleeding but would not be as immediately life-threatening as tracheal deviation. Drainage greater than 70 mL/hr could indicate hemorrhage, which also requires attention but is not as urgent as tracheal deviation. Sudden onset of shortness of breath could indicate various issues, including dislodgment of the tube or pneumothorax, which require intervention but are not as critical as tracheal deviation in this context.

Correct Answer: A

Rationale: When a client is prescribed nicotine replacement therapy, it is crucial to emphasize that smoking while using this therapy can increase the risk of a stroke. Smoking while on nicotine replacement therapy can lead to excessive nicotine levels in the body, elevating cardiovascular risks. Therefore, the nurse should educate the client on the importance of avoiding smoking while utilizing this medication. Choices B, C, and D are not relevant to the specific teaching required for a client on nicotine replacement therapy.