NCLEX-RN
NCLEX RN Exam Prep
1. Which of the following is a fat-soluble vitamin?
- A. Vitamin C
- B. Vitamin D
- C. Vitamin B-6
- D. Riboflavin
Correct answer: B
Rationale: The correct answer is Vitamin D. Fat-soluble vitamins are those that can be stored in the body, allowing excess amounts to be stored for later use. While this storage ability can help prevent deficiencies, it also poses a risk of toxicity. The fat-soluble vitamins are A, E, D, and K. Choice A, Vitamin C, is water-soluble, not fat-soluble. Choice C, Vitamin B-6, and Choice D, Riboflavin, are also water-soluble vitamins and not fat-soluble.
2. In the Gram Stain procedure, which component acts as the mordant?
- A. Crystal violet
- B. Methyl alcohol
- C. Iodine
- D. Safranin
Correct answer: C
Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.
3. Which term best describes changes such as retirement, grandparenting, and increased dependence on others?
- A. Moral
- B. Psychosocial
- C. Self-esteem
- D. Psychomotor
Correct answer: B
Rationale: The correct answer is 'Psychosocial.' Retirement, grandparenting, and increased dependence on others are examples of psychosocial changes because they involve social interactions, relationships, and psychological aspects. 'Moral' (Choice A) does not directly relate to the changes mentioned. 'Self-esteem' (Choice C) is more about self-perception and confidence, not the social changes mentioned. 'Psychomotor' (Choice D) refers to physical movements and skills, which are not the focus of the changes described in the question.
4. Which of the following is recommended by Joint Commission guidelines regarding the use of restraints?
- A. Vest restraints should be used because they are the least restrictive type.
- B. Restraints should be used for 48 hours in non-psychiatric patients.
- C. Restraints should be applied to prevent wandering behavior.
- D. Alternative measures must be attempted first.
Correct answer: D
Rationale: When considering the use of restraints, Joint Commission guidelines emphasize the importance of attempting alternative measures before resorting to restraint application. This ensures that a comprehensive assessment is conducted and less restrictive interventions are explored. Using restraints solely based on their perceived level of restrictiveness, as stated in choice A, is not in line with the recommended approach. Restraints should not be used to manage wandering behavior, as indicated in choice C. Additionally, the statement in choice B regarding the duration of restraint use is inaccurate, as restraints on non-psychiatric patients should not exceed 24 hours according to The Joint Commission.
5. When reviewing the demographics of ethnic groups in the United States, which group does the nurse recall as the largest and fastest-growing population?
- A. Asian
- B. Hispanic
- C. American Indian
- D. African American/Black
Correct answer: B
Rationale: The correct answer is 'Hispanic.' Hispanics are the largest and fastest-growing population in the United States. While African Americans/Blacks, Asians, American Indians, and other groups are significant, Hispanics currently represent the largest demographic group. African American/Black, Asian, and American Indian populations are substantial but not as large or fast-growing as the Hispanic population. Therefore, Hispanic is the most appropriate choice in this scenario.
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