Which function would the public health nurse perform while working at a local health department?

Correct Answer: C

Rationale: The correct answer is C: Educating a community about influenza vaccinations. Public health nurses focus on promoting and protecting the health of populations. Educating a community about preventive measures such as vaccinations aligns with this role. This choice addresses the broader community rather than individual clients (A). Medicaid regulations (B) and regulating CHIPs (D) involve policy implementation and oversight, which are typically outside the scope of a public health nurse's direct responsibilities. Overall, choice C best reflects the core function of a public health nurse in promoting community health and preventing disease.

Correct Answer: A

Rationale: The correct answer is A: Repetitive motions. Occupational health nurses focus on preventing work-related injuries, including ergonomic hazards. Repetitive motions can lead to musculoskeletal disorders like carpal tunnel syndrome. This condition is common among factory workers due to repetitive tasks. Infectious agents (B) are more related to infection control, noise levels (C) are part of hearing conservation programs, and cleaning solutions (D) are more about chemical hazards, not specifically ergonomic hazards.

Correct Answer: C

Rationale: The correct answer is C (Both of the above) because a Public Health Laboratory typically conducts genetic tests for both newborn screening and foodborne disease testing to monitor and prevent public health risks. Newborn screening helps identify genetic disorders in infants early on, while foodborne disease testing detects genetic markers in pathogens causing foodborne illnesses. Option A (Newborn screening) is correct as it is a common genetic test performed by Public Health Laboratories. Option B (Foodborne disease testing) is also correct as these labs play a crucial role in identifying and preventing foodborne illnesses. Option D (Neither of the above) is incorrect as Public Health Laboratories indeed perform both types of genetic tests to protect public health.

Correct Answer: D

Rationale: The correct answer is D because you do not inherit exact copies of your parents' chromosomes due to genetic recombination during meiosis. This process shuffles genetic material, creating unique combinations in each gamete. This variation results in offspring having a mix of genetic traits from both parents. Choices A and B are true statements regarding mitochondrial DNA and Y chromosome inheritance, respectively. Choice C may have been an error or intentionally left blank for the purpose of this question.

Correct Answer: C

Rationale: The central dogma of genetics states that DNA directs the production of RNA, which in turn directs the production of proteins. This process is known as gene expression. First, DNA is transcribed into RNA by RNA polymerase. Then, the RNA is translated into proteins by ribosomes. This sequence of events is crucial for the flow of genetic information within a cell. Choice A is incorrect because it reverses the sequence of events. Choice B is incorrect because RNA does not direct the production of DNA. Choice D is incorrect because while DNA is the genetic material, it does not encompass the entire central dogma of genetics.