Nursing Elites

1. Why is the specific gravity for infants lower than for older children?

• A. Infants have a greater body surface area.
• B. Infants have a higher basal metabolic rate.
• C. Infants have a greater percentage of body weight that is water.
• D. Infants' kidneys are less able to concentrate urine.

Correct answer: D

Rationale: The correct answer is D because infants' kidneys are less developed compared to older children, making them less efficient at concentrating urine. This results in a lower specific gravity in infants. The other choices do not directly explain why the specific gravity is lower in infants.

2. Which assessment finding for a 4-month-old infant would require further action by the nurse?

• A. The posterior fontanel is open.
• B. The infant has good head control when held upright.
• C. The infant is able to roll only from abdomen to back.
• D. The anterior fontanel is open and soft.

Correct answer: A

Rationale: The correct answer is A. The posterior fontanel should be closed by 4 months of age. An open posterior fontanel at this age may indicate a delay in normal closure, which could be a cause for concern and require further evaluation by the healthcare provider to ensure proper development and growth. Choices B, C, and D are typical developmental milestones for a 4-month-old infant and do not raise immediate concerns requiring further action by the nurse.

3. A school nurse is assessing a school-age child�s blood pressure while he is seated in a chair. The child starts to experience a tonic-clonic seizure. Which of the following actions should the nurse take first?

• A. Clear the immediate area around the child of hazardous objects
• B. loosen the child�s restrictive clothing
• C. assist the child to a side-lying position on the floor
• D. apply an oxygen mask to the child

Correct answer: C

Rationale: The greatest risk to this child is aspiration, occlusion of the airway, and bodily injury from falling out of the chair. The nurse should ease the child down to the floor in a side-lying position immediately.

4. A caregiver is providing teaching about car seat use to the mother of a six-month-old infant. Which of the following statements by the mother indicates an understanding of the teaching?

• A. I should secure the car seat using lower anchors and tethers instead of the seat belt
• B. I should position the car seat harness one inch above my baby's shoulders
• C. I will make sure that the car seat is placed at a 90-degree angle
• D. I will pad my baby's car seat with a blanket for traveling long distances

Correct answer: A

Rationale: The correct answer is A. Lower anchors and tethers, known as the LATCH child safety seat system, should be used to secure an infant's car seat in the vehicle. This system provides a safer and more secure way of installing the car seat compared to using the seat belt alone. Using the lower anchors and tethers ensures proper installation and reduces the risk of car seat movement during travel, providing optimal protection for the infant. Choices B, C, and D are incorrect. Choice B is incorrect because the car seat harness should be positioned at or below the baby's shoulders, not above. Choice C is incorrect because the car seat should be positioned at the correct recline angle recommended by the car seat manufacturer, which may not necessarily be 90 degrees. Choice D is incorrect because adding padding like a blanket to the car seat is not recommended as it can interfere with the proper fit and function of the car seat, potentially compromising the safety of the infant.

5. What is the corrected age of a child born at 30 weeks gestation on May 2, 2014, who is being tested on August 5, 2014?

• A. 3 months
• B. 2 weeks
• C. 2.6 months
• D. 4 weeks

Correct answer: B

Rationale: To calculate the corrected age of a premature child, you need to adjust for the weeks of prematurity. In this case, the child was born at 30 weeks gestation. From May 2, 2014, to August 5, 2014, is a span of 14 weeks. Subtracting the 30 weeks of gestation from the total time passed (14 weeks) gives the corrected age, which is 14 - 30 = -16 weeks. Since negative weeks are not relevant here, the corrected age is 0 weeks, which is equivalent to 2 weeks. Choice A is incorrect because 3 months is not the correct adjustment for the given scenario. Choice C is incorrect as it provides a fractional value for age, which is not practical in this context. Choice D is incorrect as 4 weeks does not account for the weeks of prematurity.

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