Correct Answer: A

Rationale: In emergency situations where a client is disoriented and has a cardiac arrhythmia, obtaining written consent may not be possible due to the urgency of the situation. The priority is to provide immediate treatment to ensure patient safety. Contacting the next of kin or having the client sign a consent form would cause unnecessary delays in providing critical care. Notifying risk management before initiating treatment is not the most appropriate action when dealing with a time-sensitive situation like a cardiac arrhythmia.

Correct Answer: B

Rationale: Patient advocacy in nursing entails ensuring that patients' rights and preferences are respected. This involves advocating for the patients' best interests, supporting informed decision-making, and safeguarding their autonomy. Choice A is incorrect because patient advocacy focuses on the patient's needs, not the healthcare team's. Choice C is incorrect as patient advocacy aims to empower patients and enhance their autonomy rather than limiting it. Choice D is incorrect since patient advocacy goes beyond clinical procedures to encompass holistic care that addresses the patients' preferences and rights.

Correct Answer: B

Rationale: The correct answer is B. Second-degree atrioventricular heart block is also known as Mobitz II. In Mobitz II, some atrial impulses are blocked from reaching the ventricles, resulting in occasional dropped beats. Third-degree atrioventricular heart block is known as complete heart block, where no atrial impulses reach the ventricles. First-degree atrioventricular heart block is a condition where there is delayed conduction between the atria and ventricles but all atrial impulses are eventually conducted to the ventricles.

Correct Answer: A

Rationale: The correct answer is A: 'Acute angle-closure glaucoma is an ocular emergency.' Acute angle-closure glaucoma is indeed considered an ocular emergency that requires immediate attention to prevent vision loss. Choice B is incorrect because acute angle-closure glaucoma commonly presents with symptoms like severe eye pain, headache, blurred vision, and halos around lights. Choice C is incorrect as these symptoms are more indicative of acute angle-closure glaucoma rather than primary open-angle glaucoma. Choice D is incorrect since bubbles are not typically used to protect the retina from glaucoma; treatment usually involves medications, laser therapy, or surgery to manage intraocular pressure.

Correct Answer: D

Rationale: The client is likely suffering from endocarditis based on the symptoms described. Endocarditis is characterized by fever, night sweats, hematuria, splenomegaly (tenderness of the spleen), and Osler's nodes (painful nodules on the pads of the fingers or toes). While tuberculosis and AIDS/HIV can present with some similar symptoms, the presence of Osler's nodes is more specific to endocarditis. Pericarditis typically presents with chest pain, not the combination of symptoms seen in this case.