Nursing Elites

1. Which vitamin deficiency is most associated with night blindness?

• A. Vitamin A
• B. Vitamin B12
• C. Vitamin C
• D. Vitamin D

Correct answer: A

Rationale: The correct answer is Vitamin A. Vitamin A deficiency leads to night blindness because this vitamin is crucial for the formation of rhodopsin, a photopigment in the retina. Rhodopsin is essential for vision in low-light conditions. Vitamin B12 deficiency can lead to anemia and neurological issues but is not directly related to night blindness. Vitamin C deficiency can cause scurvy, affecting connective tissues, but not night vision. Vitamin D deficiency can lead to bone disorders but is not primarily associated with night blindness.

2. The PN is caring for a laboring client whose last sterile vaginal examination revealed the cervix was 3 cm dilated, 50% effaced, and the presenting part was at 0 station. An hour later, the client tells the PN that she wants to go to the bathroom. Which action is most important for the PN to implement?

• A. Review the fetal heart rate and contraction pattern
• B. Check the perineum for an increase in bloody show
• C. Request a nurse to check the client's cervical dilation
• D. Palpate the client's bladder for distention

Correct answer: C

Rationale: The sudden urge to use the bathroom may indicate that labor is progressing quickly. Checking the cervical dilation will help determine if the client is in the transition phase of labor and if it is appropriate to allow her to get up. Reviewing the fetal heart rate and contraction pattern (Choice A) is important but not the most immediate action in this scenario. Checking the perineum for an increase in bloody show (Choice B) is relevant but not as crucial as assessing cervical dilation. Palpating the client's bladder for distention (Choice D) is not the priority when the client wants to go to the bathroom during labor.

3. At what age does a 9-year-old child typically lose which of the following teeth?

• A. Central incisor
• B. Second molar
• C. Lateral incisor
• D. Cuspid

Correct answer: A

Rationale: A 9-year-old child typically loses their central incisors, not the lateral incisors or second molars. The central incisors are usually among the first teeth that children lose around 6 to 7 years of age, as part of the natural process of shedding primary teeth to make way for permanent teeth. The second molars and cuspids are typically lost later in the mixed dentition phase. Therefore, option A, 'Central incisor,' is the correct answer.

4. The PN observes a UAP preparing to exit a client's room. The UAP's hands appear visibly soiled as the UAP uses a hand rub for 19 seconds to cleanse the hands. Which action should the PN take?

• A. Confirm that the UAP completed hand hygiene correctly
• B. Instruct the UAP to wash the hands for one minute
• C. Ask the UAP why the hands were so obviously soiled
• D. Advise the UAP to use the hand rub for 30 seconds

Correct answer: D

Rationale: When hands are visibly soiled, they should be washed with soap and water for at least 20 seconds. However, when using hand rub, it should be applied for at least 30 seconds to be effective. In this scenario, the UAP's hands were visibly soiled, indicating the need for thorough cleaning. Advising the UAP to use the hand rub for 30 seconds is essential to ensure proper hand hygiene and reduce the risk of spreading infection. Choices A, B, and C are incorrect because confirming completion of hand hygiene, instructing to wash for one minute, or asking why the hands were soiled do not address the immediate need for proper hand hygiene in the given situation.

5. What is the primary function of hemoglobin in red blood cells?

• A. Oxygen transport
• B. Immunity
• C. Blood clotting
• D. Carbon dioxide transport

Correct answer: A

Rationale: The correct answer is A: Oxygen transport. Hemoglobin in red blood cells binds to oxygen in the lungs and carries it to tissues throughout the body, releasing it where needed. This process is essential for cellular respiration and energy production. Choices B, C, and D are incorrect because hemoglobin's primary function is not related to immunity, blood clotting, or carbon dioxide transport. Hemoglobin's main role is to transport oxygen, ensuring adequate oxygen supply to body tissues for metabolic processes.

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