Correct Answer: B

Rationale: The correct action for the nurse to take when there is a pause after activating the machine for synchronized cardioversion on a client in atrial fibrillation is to shout "all clear" and not touch the bed. This step is crucial to ensure the safety of everyone present by warning them that the machine will discharge, preventing anyone from being inadvertently shocked. Waiting for the machine to discharge (choice A) is not recommended as it can lead to accidental injury. While ensuring the client is all right (choice C) is important, the immediate focus should be on safety during the procedure. Increasing the joules and re-discharging (choice D) without assessing the situation can pose risks to the client and the healthcare team.

Correct Answer: C

Rationale: Zinc supplementation is often recommended to manage mucositis in patients undergoing chemotherapy. Zinc plays a crucial role in wound healing and immune function, which can help alleviate the symptoms of mucositis. Vitamin E (Choice A) is known for its antioxidant properties but is not typically used to manage mucositis. Vitamin B12 (Choice B) is important for red blood cell production and nerve function but is not directly associated with mucositis management. Calcium (Choice D) is essential for bone health and muscle function but is not a primary nutrient supplemented to manage mucositis.

Correct Answer: D

Rationale: Choice D is the correct answer because a swollen and thickened spermatic cord could indicate testicular torsion, which is a surgical emergency. Testicular torsion occurs when the spermatic cord twists, cutting off the blood supply to the testicle. This condition requires immediate intervention to prevent testicular damage. Choices A, B, and C do not present findings that suggest a surgical emergency requiring immediate intervention.

Correct Answer: B

Rationale: The Patient Holding Squad is the module that is composed of practical nurses, medical specialists, and equipment to provide medical support for minimal care patients. This squad focuses on providing necessary care for patients who require minimal attention. Choices A, C, and D are incorrect because they do not specifically cater to the needs of minimal care patients. The Treatment Squad may involve more intensive procedures, the Area Support Squad focuses on broader support functions, and the Surgical Squad is specialized for surgical interventions.

Correct Answer: D

Rationale: A swollen and thickened spermatic cord could indicate testicular torsion, which is a surgical emergency.