Correct Answer: C

Rationale: The correct answer is C: Abrasion. Abrasion is the wearing away of tooth structure due to friction from external sources like toothbrushing or abrasive toothpaste. Dental caries (A) refers to tooth decay caused by bacteria. Attrition (B) is the wearing down of tooth structure due to tooth-to-tooth contact. Erosion (D) is the loss of tooth structure from acid attacks, not friction. Therefore, option C is the most fitting choice based on the description given.

Correct Answer: B

Rationale: The correct answer is B because the death of a spouse, child, or death by suicide are all significant losses that can lead to complicated grief due to the intensity of emotions and the disruption of daily life. These experiences can result in prolonged and severe grieving processes that may require professional intervention. Explanation for other choices: A: Childbirth, marriage, and divorce are not typically considered risk factors for complicated grief as they are more commonly associated with expected life events that may involve grief but not necessarily lead to complicated grief. C: Inadequate perception of the grieving process may contribute to difficulties in coping with grief but is not a direct risk factor for complicated grief. D: While inadequate support can impact the grieving process, and old age may present unique challenges, they are not specific risk factors for complicated grief compared to the profound loss experienced in choice B.

Correct Answer: A

Rationale: The correct answer is A: Justice. Nurse Erika is ensuring fairness by including all newly hired nurses in her project without discrimination. Justice in healthcare promotes equity and equal opportunities. Nonmaleficence (B) refers to the duty to do no harm, not relevant here. Autonomy (C) relates to respecting individuals' right to make decisions for themselves, not evident in the scenario. Respect (D) is important but not the primary ethical principle demonstrated here.

Correct Answer: B

Rationale: The correct answer is B: 20-Gauge. The smaller the gauge number, the larger the diameter of the catheter. Blood transfusions typically require a larger catheter size to prevent hemolysis and ensure proper flow. A 20-Gauge catheter is larger than 22-Gauge, 18-Gauge, and 12-Gauge, making it suitable for administering blood. 22-Gauge is too small and can cause hemolysis, 18-Gauge is smaller than the recommended size for blood transfusions, and 12-Gauge is too large and can cause damage to the vein.

Correct Answer: A

Rationale: The correct answer is A: Bleeding. Chemotherapy can lead to low platelet counts (thrombocytopenia), increasing the risk of bleeding. The priority goal of the nurse is to prevent bleeding by taking precautions such as avoiding invasive procedures, using soft toothbrushes, and monitoring for signs of bleeding. Infection (B) is important but not the priority as bleeding can be life-threatening. Hypotension (C) is not directly related to thrombocytopenia. Diarrhea (D) is a potential side effect of chemotherapy but is not the priority when considering thrombocytopenia.