Correct Answer: A

Rationale: The correct answer is A: Myasthenia gravis. In myasthenia gravis, there is a decrease in acetylcholine receptors at the neuromuscular junction, leading to muscle weakness and fatigue. This occurs due to autoimmune destruction of these receptors. ALS (B) affects motor neurons, not acetylcholine receptors. Guillain-Barre syndrome (C) is an autoimmune disorder affecting peripheral nerves, not neuromuscular junctions. Muscular dystrophy (D) is a genetic disorder causing muscle degeneration, not affecting acetylcholine receptors.

Correct Answer: B

Rationale: The correct answer is B: Threatened abortion. Vaginal spotting and abdominal cramps are common symptoms of a threatened abortion, which occurs when there is a risk of miscarriage but the pregnancy remains viable. This diagnosis is likely after a vaginal examination to assess the cervix and presence of fetal heartbeat. A: Eclampsia is characterized by seizures in pregnancy due to high blood pressure, not typically presenting with vaginal spotting and cramps. C: Placenta previa involves the placenta covering the cervix, leading to painless vaginal bleeding, not associated with cramps. D: Abruptio placenta is premature separation of the placenta from the uterus, manifesting as painful bleeding, not typically with vaginal spotting and cramps.

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: C

Rationale: Step-by-step rationale for the correct answer (C: I and II): 1. Choice I (The expression of pain is affected by learned behavior) is correct because cultural beliefs and upbringing influence how individuals express and perceive pain. 2. Choice II (Physiologically, all individuals experience pain in a similar manner) is correct because pain perception is largely influenced by biological factors that are universal. 3. Choice III (Some Asian people have a high response to pain medications) is incorrect as it focuses on a specific cultural group, which is not a general characteristic emphasized in culturally sensitive care. 4. Choice IV (Patients should be assessed for pain regardless of overt symptomatology) is incorrect as it is not specifically related to cultural sensitivity in pain management.

Correct Answer: C

Rationale: The correct answer is C: Primary prevention. In this scenario, the clinic focuses on preventing disease before it occurs through health education and immunization. Primary prevention aims to promote general health and prevent the onset of diseases. It targets the entire population to reduce the risk of disease occurrence. Incorrect Choices: A: Diagnosis and treatment - This choice involves identifying and treating existing health conditions, which is not the primary focus of a clinic designed for health education and immunization. B: Secondary prevention - This choice involves early detection and treatment of diseases to prevent complications, which is more focused on individuals who already have risk factors or symptoms, not on the general population. D: Tertiary prevention - This choice involves managing and treating complications of diseases to prevent further deterioration, which is not the primary goal of a clinic focused on health education and immunization.