Correct Answer: C

Rationale: Immunization programs are the most effective way to prevent the spread of communicable diseases. Vaccinations help build immunity against specific diseases, reducing the likelihood of an outbreak. Regular health check-ups (Choice A) are important for individual health but do not directly prevent the spread of diseases on a community level. Isolation of infected individuals (Choice B) is a containment measure rather than prevention for the entire community. Public health education (Choice D) is valuable in raising awareness but may not be as effective as immunization programs in directly preventing the spread of communicable diseases.

Correct Answer: C

Rationale: The correct answer is C because wound care for a postoperative infection is a skilled service that qualifies for Medicare reimbursement. Choices A, B, and D involve assessments, teaching, and evaluation, which may not meet the criteria for Medicare reimbursement as they do not directly involve a skilled nursing service related to a postoperative condition.

Correct Answer: B

Rationale: The correct answer is 'B: researcher.' In this context, the individual is primarily involved in developing research questions, conducting research, and disseminating findings, which aligns with the responsibilities of a researcher. Choice 'A: manager' is incorrect because the role described does not primarily involve managerial duties. Choice 'C: clinician/practitioner' is also incorrect as the focus is on research activities rather than direct clinical practice. Choice 'D: health promotion specialist' does not encompass the full scope of responsibilities described in the scenario.

Correct Answer: B

Rationale: In situations where a client's condition worsens and the caregiver is no longer able to provide sufficient care, the first action to implement is to assign a home health care aide to provide daily care. This ensures that the client's immediate needs are met and that they receive proper care and support. Requesting a chaplain for counseling (Choice A) may be beneficial but is not the most urgent action. Discussing placing the wife in a nursing home (Choice C) should only be considered after assessing the client's needs and exploring all other options. Contacting the client's children (Choice D) can be helpful but does not address the immediate need for daily care that the client requires.

Correct Answer: D

Rationale: Irregular hip symmetry, such as asymmetry in the gluteal folds, is a common sign of hip dislocation in newborns. This finding indicates a potential abnormality in hip development and requires further evaluation and possible treatment. Choices A, B, and C are incorrect. Flexion of lower extremities is a normal newborn reflex, the Ortolani response is used to detect hip dysplasia rather than hip dislocation, and a lengthened leg of the affected side is not typically associated with hip dislocation in newborns.