Correct Answer: B

Rationale: The correct answer is B: 'Use of accessory muscles.' Clients with COPD often experience airway obstruction, leading to the use of accessory muscles to breathe. This compensatory mechanism helps them overcome the increased work of breathing. Choice A, 'Decreased respiratory rate,' is incorrect because clients with COPD typically have an increased respiratory rate due to the need for more effort to breathe. Choice C, 'Improved lung sounds,' is incorrect because COPD is characterized by wheezes, crackles, and diminished breath sounds. Choice D, 'Increased energy levels,' is incorrect because clients with COPD often experience fatigue due to the increased work of breathing and impaired gas exchange.

Correct Answer: B

Rationale: The correct action for the nurse to take is to respectfully deny the grandparent's request. In healthcare settings, strict security protocols are in place to ensure the safety of newborns. Only individuals with proper identification bracelets are allowed to transport newborns to prevent unauthorized individuals from taking them. Contacting the mother for verification would be time-consuming and may not be feasible immediately. Escorting the grandparent and newborn without proper identification would violate security protocols and compromise the newborn's safety. Notifying security should be done only if there is a threat or concern for safety, which is not the case in this scenario. Therefore, the best course of action is for the nurse to respectfully deny the grandparent's request to uphold the safety and security measures in place.

Correct Answer: B

Rationale: The correct answer is B: Increased respiratory rate. In pneumonia, the body tries to compensate for the reduced ability to oxygenate the blood by increasing the respiratory rate. This helps to improve oxygen exchange. Bradycardia (Choice A) is not typically associated with pneumonia, as an increased heart rate is more common due to the stress on the body. Decreased temperature (Choice C) is not a typical finding in pneumonia, as infections usually cause a fever. Elevated blood pressure (Choice D) is not a common finding in pneumonia unless there are complications such as sepsis.

Correct Answer: C

Rationale: Edema is a common sign of fluid overload. When the body retains more fluid than it excretes, it can lead to edema, which is swelling caused by excess fluid trapped in body tissues. Weight gain, not weight loss, is typically associated with fluid overload due to the retained fluids. Decreased blood pressure is more commonly associated with dehydration rather than fluid overload. Increased urine output is a sign of the body trying to eliminate excess fluids, which is contrary to the signs of fluid overload.

Correct Answer: B

Rationale: The correct answer is to monitor for headaches when taking sildenafil. This medication can cause headaches and other side effects, so it is crucial to inform clients about these potential adverse reactions. Choice A is incorrect because sildenafil should not be taken with nitrates due to the risk of severe hypotension. Choice C is incorrect as sildenafil is a prescription medication, not an over-the-counter one. Choice D is incorrect because sildenafil, like any medication, can have side effects that should be discussed with the client.