Correct Answer: B

Rationale: Before administering medications through a nasogastric tube, the nurse should administer them one after the other without flushing. Flushing the tube with water should be done before and after each medication to prevent any interactions and ensure each medication is delivered effectively. The correct answer is not to administer all medications at once (choice A) as this can lead to potential drug interactions. Crushing all medications and mixing them together (choice C) is incorrect as each medication should be given separately to maintain their individual efficacy. Administering medications in liquid form only (choice D) is limiting and may not be suitable for all types of medications that need to be administered.

Correct Answer: B

Rationale: The correct answer is B: Check the tube placement before administering any medication. Before administering medication through a nasogastric tube, the nurse must first verify the tube's correct placement to ensure the medication reaches the stomach and to prevent complications such as aspiration. Options A, C, and D are incorrect because administering medication without confirming proper tube placement can lead to serious consequences for the client.

Correct Answer: A

Rationale: The correct answer is to administer nitroglycerin as prescribed. Nitroglycerin helps relieve chest pain by dilating blood vessels and improving blood flow, addressing the immediate concern of chest pain. Encouraging deep breaths may not be appropriate for chest pain, monitoring blood pressure, although important, is not the priority when the patient is experiencing chest pain, and while resting in a comfortable position is beneficial, administering nitroglycerin is the priority intervention to address the chest pain.

Correct Answer: B

Rationale: The correct answer is B: Monitor the patient for respiratory depression. When administering a high dose of morphine, the nurse's primary consideration should be to monitor the patient for respiratory depression, as morphine can slow down breathing, especially in higher doses. Option A is incorrect because the primary focus should be on the patient's well-being and safety rather than family awareness at this point. Option C is not the best approach as the immediate concern is monitoring the patient closely for any adverse effects. Option D is not advisable as delaying administration without a valid reason can compromise pain management in a terminal cancer patient.

Correct Answer: A

Rationale: The correct answer is A: Sterilizing contaminated items. Maintaining medical asepsis involves ensuring that items are free of microorganisms to prevent infections. Sterilizing contaminated items is a crucial step in this process as it eliminates all microorganisms, including spores. Choices B, C, and D do not directly address the process of reducing and preventing the spread of microorganisms. While routinely cleaning the hospital environment is important for cleanliness, it does not guarantee the elimination of all microorganisms. Reapplying a sterile dressing and applying a sterile gown and gloves are specific actions related to personal protective equipment and wound care, not the general maintenance of medical asepsis.