Correct Answer: B

Rationale: The correct action for the nurse to take is to check the placement of the nasogastric tube every 8 hours. This is crucial to ensure that the tube is correctly positioned in the stomach, reducing the risk of complications such as aspiration. Administering the feeding using a large-bore syringe (Choice A) is not recommended for enteral nutrition. Flushing the tube with water every 6 hours (Choice C) is not necessary for continuous enteral nutrition. Maintaining the client in an upright position (Choice D) is generally preferred to reduce the risk of aspiration, but it is not the most critical action compared to verifying tube placement.

Correct Answer: B

Rationale: The correct answer is B. Clients taking digoxin should check their pulse before each dose to ensure it is within the appropriate range. Option A is incorrect because stopping the medication based solely on a heart rate below 80/min is not recommended. Option C is incorrect as having a pulse above 100/min doesn't necessarily indicate a need to stop digoxin. Option D is incorrect because digoxin should not be taken with an antacid as it can interfere with its absorption.

Correct Answer: B

Rationale: A positive antinuclear antibody (ANA) titer is a significant finding in clients with systemic lupus erythematosus (SLE) as it indicates active disease. This result should be reported to the provider for further evaluation and management. Choices A, C, and D are within normal ranges and not specifically indicative of disease activity in SLE. Therefore, they do not require immediate reporting to the provider.

Correct Answer: A

Rationale: The correct answer is A: 'Take a tablet every 5 minutes for pain relief, up to three doses.' Nitroglycerin sublingual tablets are used to relieve chest pain or to prevent chest pain before activities known to cause angina. The tablets should be taken every 5 minutes for pain relief, up to three doses, as prescribed. Choice B is incorrect because nitroglycerin sublingual tablets should be placed under the tongue until they dissolve, not taken with water. Choice C is incorrect because nitroglycerin sublingual tablets should not be chewed but placed under the tongue for absorption. Choice D is incorrect because nitroglycerin tablets should be stored in their original container at room temperature away from light and moisture.

Correct Answer: D

Rationale: Following an amniocentesis at 33 weeks of gestation, the nurse should monitor the client for contractions. Contractions can indicate preterm labor, which requires immediate attention. Vomiting, hypertension, and epigastric pain are not typically associated with amniocentesis complications at this gestational age.