Correct Answer: C

Rationale: The correct answer is a red, beefy tongue, which is characteristic of pernicious anemia due to the atrophy of the papillae on the tongue. This finding is known as glossitis. A red, beefy tongue is a classic sign of pernicious anemia. Choice A, weight loss of 10 pounds in 2 weeks, is non-specific and not a typical finding in pernicious anemia. Choice B, complaints of numbness and tingling in the extremities, are more indicative of peripheral neuropathy, a common symptom of vitamin B12 deficiency, which can be seen in pernicious anemia. Choice D, a hemoglobin level of 12.0 g/dL, falls within the normal range and does not specifically point towards pernicious anemia, which is characterized by low hemoglobin levels due to impaired absorption of vitamin B12.

Correct Answer: D

Rationale: Quinidine can cause widened Q-T intervals and heart block, leading to a prolonged QT interval on the ECG. Other signs of myocardial toxicity associated with quinidine include notched P waves and widened QRS complexes. Common side effects of quinidine include diarrhea, nausea, and vomiting, while less common effects may include tinnitus, vertigo, headache, visual disturbances, and confusion. Monitoring for a prolonged QT interval is crucial due to the potential risk of serious arrhythmias. Choices A, B, and C are not typically associated with the use of quinidine and are therefore incorrect in this context.

Correct Answer: C

Rationale: The correct answer is 'when needs change.' The nurse should be flexible and adjust the plan as necessary when the needs of the patients change. This ensures that care is provided effectively and efficiently. Choices A, B, and D are incorrect because altering the plan based on time intervals, solely at the end of the shift, or after completing top-priority tasks may not align with the current needs of the patients.

Correct Answer: C

Rationale: The correct answer is 'relaxation technique.' Biofeedback techniques are a form of relaxation technique that can help individuals quiet the mind, release tension, and counteract responses to stress. Teaching biofeedback techniques to the client aims to promote relaxation and stress management. Choice A, 'structure,' does not directly relate to teaching biofeedback techniques. Choice C, 'time management,' focuses on organizing tasks efficiently, not on relaxation techniques. Choice D, 'regular exercise,' although beneficial for overall health, is not specifically related to the teaching of biofeedback techniques for stress relief.

Correct Answer: D

Rationale: A licensed practical nurse should not initiate a blood transfusion. LPNs can assist with transfusions and verify ID numbers but should not be assigned to initiate the procedure. Inserting Foley catheters, discontinuing nasogastric tubes, and obtaining sputum specimens are within the scope of practice for LPNs. Therefore, options A, B, and C are tasks that LPNs can perform, making them incorrect choices.