Correct Answer: D

Rationale: Correct Answer: D - Removing all of the patient’s metallic jewelry. Rationale: 1. Safety: Metallic objects can be attracted by the MRI magnet, causing harm to the patient and disrupting the imaging process. 2. Artifact Prevention: Metallic objects can produce artifacts on the MRI images, affecting the diagnostic quality. 3. Patient Comfort: Removing jewelry ensures the patient's comfort during the scan, avoiding discomfort or injury. Summary of Incorrect Choices: A: Not eating or drinking before an MRI is important, but it is not the most crucial action compared to patient safety and image quality. B: Colon cleansing may be necessary for certain types of MRI scans, but it is not universally required and is not the most important action. C: Pain medication may be important for patient comfort, but it is not essential for the actual MRI procedure and does not impact safety or image quality.

Correct Answer: A

Rationale: The correct answer is A: Depression. In the context of the stages of death and dying proposed by Elisabeth Kübler-Ross, a patient exhibiting signs of loss, grief, and intense sadness is likely in the depression stage. This stage involves feelings of hopelessness, despair, and sorrow as the patient comes to terms with the reality of their situation. Denial (choice B) is characterized by a refusal to accept the diagnosis, anger (choice C) involves feelings of resentment and frustration, and resignation (choice D) signifies a sense of acceptance and peace. In this scenario, the patient's emotional state aligns most closely with depression, indicating a deep sense of sadness and mourning.

Correct Answer: D

Rationale: Rationale for Correct Answer (D): Checking with the pharmacy for availability of liquid forms of medications is the best action because it reduces the risk of clogging the nasogastric tube. Liquid medications are less likely to cause blockages compared to nonliquid medications. Additionally, liquid forms are easier to administer through the tube. By using liquid medications, the nurse can ensure that the medications flow smoothly through the tube without causing any obstructions. Summary of Incorrect Choices: A: Instilling nonliquid medications without diluting can increase the risk of tube clogging. B: Irrigating the tube with water after all medications are given may not prevent clogging effectively and could introduce unnecessary moisture into the tube. C: Mixing all medications together can lead to potential drug interactions and may not address the issue of tube clogging effectively.

Correct Answer: B

Rationale: The correct answer is B: Human papillomavirus (HPV). HPV is the most important risk factor for cervical cancer as it is responsible for almost all cases. Step 1: HPV infection can lead to changes in cervical cells, increasing the risk of cancer. Step 2: Early detection and vaccination against HPV can prevent cervical cancer. Step 3: Other factors like late childbearing, postmenopausal bleeding, and tobacco use may be associated with increased risk but are not as directly linked to cervical cancer development.

Correct Answer: B

Rationale: The correct answer is B. Antihistamines are generally considered safe during pregnancy, but it is recommended to avoid unnecessary medications, especially in the third trimester. Antihistamines should be used cautiously in pregnant women due to potential effects on the fetus. Choice A is incorrect because previous treatment for tuberculosis does not contraindicate the use of antihistamines. Choice C is incorrect as estrogen-replacement therapy does not interact significantly with antihistamines. Choice D is incorrect as a severe allergy to eggs does not directly contraindicate the use of antihistamines.