Correct Answer: D

Rationale: It is important to check the medication label against the medication order before administering any medication to ensure accuracy.

Correct Answer: C

Rationale: In situations where a patient's family member is expressing anxiety about their loved one's condition, it is important for the nurse to provide clear and accurate information about the patient's status. By explaining the nature of the injury and reassuring the wife that her husband's condition is stable, the nurse can help alleviate her anxiety and address her concerns in a meaningful way. This intervention focuses on open communication and providing emotional support, which are crucial in helping the family member cope with the situation. It is essential to establish trust and create a supportive environment for the family member during this stressful time.

Correct Answer: D

Rationale: While attending professional conventions, webinars, and symposiums are all valuable informal continuing education programs that can help nurses stay updated with the latest trends and developments in the field, doing research as an academic requirement is not typically considered an informal continuing education activity. Research is a formal process that involves structured methodologies and academic rigor. While research may be a valuable activity for professional growth, it is not usually classified under informal continuing education programs that nurses engage in to supplement their knowledge and skills.

Correct Answer: B

Rationale: Major histocompatibility complex (MHC) class I molecules are responsible for presenting endogenous antigens, such as viral or intracellular proteins, to CD8+ T cells. These antigens are derived from within the cell, either synthesized within the cell itself or taken up from the cytoplasm. CD8+ T cells, also known as cytotoxic T cells, recognize antigens presented by MHC class I molecules and play a key role in cell-mediated immunity by destroying infected or abnormal cells.

Correct Answer: B

Rationale: Induction is the deliberate initiation of uterine contractions that stimulates labor. It is usually initiated when natural labor is not progressing or is overdue. This process can involve the use of medications or other methods to help the uterus contract and initiate labor. Option B accurately describes induction, making it the correct answer in this case.