Correct Answer: B

Rationale: Choice B is the best response as it provides empathy and encourages the client to talk about her experience, which can be therapeutic. This approach validates the client's feelings and offers support. By acknowledging the difficulty and fear experienced by the client, the nurse opens the door for the client to express her emotions and begin the process of coping with the trauma. Choices A, C, and D do not address the emotional impact of the traumatic event or provide an opportunity for the client to express her feelings and concerns. Choice A immediately jumps to medication without exploring other supportive interventions. Choice C focuses on practical solutions without addressing the client's emotional needs. Choice D suggests a drastic solution without considering the client's emotional state or preferences.

Correct Answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

Correct Answer: D

Rationale: Social support systems involve external sources of support like call-in help lines, emotional assistance from others, and community support groups. These external resources provide individuals with assistance and comfort. Coping skills and verbalization for anger management are personal strategies that individuals use to manage emotions internally. While these skills can be beneficial, they are not considered part of external social support systems.

Correct Answer: D

Rationale: A culture for gonorrhea is taken from the genital secretions as gonorrhea primarily affects the genital area. The culture is incubated in a warm environment to promote the growth of Neisseria gonorrhoeae, the bacterium causing gonorrhea. Genital secretions provide a direct sample from the site of infection, increasing the accuracy of diagnosis. Choices A, B, and C are incorrect as they are not suitable specimens for diagnosing gonorrhea. Blood cultures are used to detect bloodstream infections, nasopharyngeal secretions are collected for respiratory infections, and stool cultures are done to identify gastrointestinal infections, none of which are related to gonorrhea.

Correct Answer: B

Rationale: The correct answer is B: 'Egg white should not be given to my infant because of the risk for an allergy.' Egg white, even in small quantities, is not recommended for infants until the end of the first year of life due to its common allergenic potential. Choice A is incorrect because while meats are important for iron, they are not typically introduced to infants until around 6-8 months. Choice C is incorrect because food should never be mixed with formula in the bottle as it may lead to feeding difficulties and inaccurate monitoring of intake. Choice D is incorrect because fluoride supplementation may be required around 6 months depending on the infant's fluoride intake from water. Introducing solid foods like rice cereal, fruits, or vegetables is usually done around 5-6 months, following healthcare provider recommendations.