NCLEX-RN
NCLEX RN Exam Review Answers
1. As a nursing supervisor in a long-term care facility, you prioritize strict infection control prevention measures due to the understanding that the normal aging process weakens the body's defenses. Which theory of aging supports the necessity of strict infection control prevention measures?
- A. The Programmed Longevity Theory
- B. The Immunological Theory of Aging
- C. The Endocrine Theory
- D. The Rate of Living Theory
Correct answer: B
Rationale: The theory of aging that aligns with the need for strict infection control prevention measures is the Immunological Theory of Aging. This theory posits that aging leads to a decline in the body's immune defenses and a reduced ability of antibodies to protect against infections. The other theories do not directly address the impact of aging on the immune system. The Programmed Longevity Theory focuses on genetic changes affecting aging, the Endocrine Theory emphasizes hormonal changes, and the Rate of Living Theory relates longevity to the rate of oxygen metabolism.
2. The key to the prevention of a pandemic influenza is:
- A. Early detection
- B. Early antibiotic treatment
- C. Vaccination of at-risk populations
- D. Isolation of suspected cases
Correct answer: A
Rationale: The key to preventing a pandemic influenza is early detection. Detecting influenza cases early allows for timely public health responses to limit the spread of the virus. Early detection helps in implementing measures such as isolation, treatment, and vaccination to prevent the development of a full-blown pandemic. Antibiotics are not effective against influenza viruses, so early antibiotic treatment is not the key to prevention. While vaccination of at-risk populations is important in controlling the spread of influenza, early detection is crucial as it allows for timely implementation of vaccination strategies. Isolation of suspected cases is a containment measure rather than a prevention strategy; the key to prevention lies in early detection to stop the spread before it becomes a pandemic.
3. A new mother has some questions about phenylketonuria (PKU). Which of the following statements made by a nurse is not correct regarding PKU?
- A. A Guthrie test can check the necessary lab values.
- B. The urine has a high concentration of phenylpyruvic acid
- C. Mental deficits are often present with PKU
- D. The effects of PKU are reversible
Correct answer: D
Rationale: Phenylketonuria (PKU) is an inherited disorder that increases the levels of phenylalanine (a building block of proteins) in the blood. If PKU is not treated, phenylalanine can build up to harmful levels in the body, causing intellectual disability and other serious health problems. The signs and symptoms of PKU vary from mild to severe. The most severe form of this disorder is known as classic PKU. Infants with classic PKU appear normal until they are a few months old. Without treatment, these children develop a permanent intellectual disability. Seizures, delayed development, behavioral problems, and psychiatric disorders are also common. Untreated individuals may have a musty or mouse-like odor as a side effect of excess phenylalanine in the body. Children with classic PKU tend to have lighter skin and hair than unaffected family members and are also likely to have skin disorders such as eczema. The effects of PKU stay with the infant throughout their life (via Genetic Home Reference).
4. A nurse with five years of experience working in a hospital unit is promoted as a mentor and preceptor to a new nursing staff. This is an example of:
- A. Collegiality
- B. Competence
- C. Advocacy
- D. Integration
Correct answer: A
Rationale: Collegiality is the action of forming relationships and supporting others through work experiences. In this scenario, the nurse being promoted as a mentor and preceptor exemplifies collegiality by fostering an encouraging educational relationship with the new nursing staff. The nurse demonstrates appropriate nursing care, teaches skills, and supports the professional growth of others. Choice B, 'Competence,' refers to having the necessary skills and knowledge, but in this context, the focus is on the supportive and educational role of the nurse. Choice C, 'Advocacy,' involves speaking up for patients' rights and needs, which is not directly demonstrated in the scenario. Choice D, 'Integration,' does not directly relate to the situation described, where the emphasis is on mentoring and guiding new staff.
5. A 3-year-old pediatric patient's mother would like to stay at the patient's bedside throughout the night as the patient seems calmer when she is present. What is the most caring and appropriate response?
- A. Reinforce visiting hours
- B. Allow her to stay for a short period beyond normal hours
- C. Allow her to stay throughout the night
- D. Offer to get bedding for a couch in the waiting room
Correct answer: C
Rationale: Allowing the mother to stay throughout the night is the most caring and appropriate response in this situation. Pediatric facilities often recognize the crucial role parents play in their child's care and are supportive of unlimited visitation. Allowing the mother to stay can help maintain the child's calmness and enhance the bond between the family and healthcare team. Reinforcing visiting hours (Choice A) may not address the specific needs of this situation where the child benefits from the mother's presence. Allowing her to stay for a short period beyond normal hours (Choice B) may not fully address the need for her continuous presence. Offering to get bedding for a couch in the waiting room (Choice D) may not be necessary if the mother can stay with her child in the patient's room.
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