Nursing Elites

1. Where do the vast majority of deaths resulting from unintentional poisoning occur?

• A. Infants
• B. Toddlers
• C. Teens
• D. Adults

Correct answer: B

Rationale: The correct answer is 'Toddlers.' Toddlers are at the highest risk of unintentional poisoning due to their natural curiosity, explorative behavior, and lack of awareness of potential dangers. Infants are typically closely monitored, teens are more aware of risks, and adults generally have better judgment and understanding of hazardous substances, making them less susceptible to unintentional poisoning. Therefore, toddlers, being inquisitive and unaware of risks, are the most vulnerable group in terms of unintentional poisoning incidents.

2. What is the term for the tendency of a drug to combine with its receptor?

• A. potency
• B. efficacy
• C. kinetics
• D. affinity

Correct answer: D

Rationale: The correct answer is 'affinity.' Affinity refers to the close relationship or mutual attraction between a drug and its receptor, indicating the strength of the drug-receptor bonding. Potency (Choice A) is related to the dose of a drug needed to produce a specific effect. Efficacy (Choice B) refers to a drug's ability to generate the desired effect. Kinetics (Choice C) deals with forces affecting the motion of material bodies or changes in a system, which is not directly associated with the bonding between a drug and its receptor.

3. Which of the following are antiviral drug classes used in the treatment of HIV/AIDS?

• A. Nucleoside reverse transcriptase inhibitors
• B. Protease inhibitors
• C. HIV fusion inhibitors
• D. All of the above

Correct answer: D

Rationale: The correct answer is 'All of the above.' Nucleoside reverse transcriptase inhibitors inhibit the enzyme reverse transcriptase, protease inhibitors block the activity of the HIV-1 protease enzyme, and HIV fusion inhibitors prevent HIV from entering human cells. Therefore, all the choices provided are valid antiviral drug classes for managing HIV/AIDS. Nucleoside reverse transcriptase inhibitors, protease inhibitors, and HIV fusion inhibitors play crucial roles in combating the virus at different stages. Nucleoside reverse transcriptase inhibitors target an early stage, protease inhibitors act on a later stage, and HIV fusion inhibitors prevent viral entry. Thus, 'All of the above' is the correct and comprehensive answer encompassing different mechanisms of action in managing HIV/AIDS.

4. When the nurse is determining the appropriate size of an oropharyngeal airway to insert, what part of a client's body should she measure?

• A. corner of the mouth to the tragus of the ear
• B. corner of the eye to the top of the ear
• C. tip of the chin to the sternum
• D. tip of the nose to the earlobe

Correct answer: B

Rationale: Correct! When sizing an oropharyngeal airway, the nurse should measure from the corner of the client's mouth to the tragus of the ear. This measurement ensures that the airway is the appropriate length to reach the pharynx without being too long or too short. Choices B, C, and D are incorrect as they do not provide the correct anatomical landmarks for determining the size of an oropharyngeal airway. Measuring from the corner of the mouth to the tragus of the ear is a standard method to ensure proper airway size and prevent complications during airway management.

5. A new mother asks the nurse, 'I was told that my infant received my antibodies during pregnancy. Does that mean that my infant is protected against infections?' Which statement should the nurse make in response to the mother?

• A. The immune system of an infant is immature, and the infant is at risk for infection.
• B. The transfer of your antibodies protects your infant until the infant is 12 months old.
• C. Yes, your infant is protected from all infections.
• D. If you breastfeed, your infant is protected from infection.

Correct answer: A

Rationale: The transplacental transfer of maternal antibodies supplements the infant's weak response to infection until approximately 3 to 4 months of age. While the infant starts producing immunoglobulin (Ig) soon after birth, it only reaches about 60% of the adult IgG level, 75% of the adult IgM level, and 20% of the adult IgA level by 1 year of age. Breast milk provides additional IgA protection. Although the immune system matures during infancy, full protection against infections is not achieved until early childhood, putting the infant at risk for infections. Choice B is incorrect because maternal antibody protection typically lasts around 3 to 4 months, not until the infant is 12 months old. Choice C is incorrect as infants are not shielded from all infections due to their immature immune system. Choice D is incorrect because while breastfeeding offers extra protection, it does not guarantee complete immunity against infections.

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