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. How would you best evaluate the clinical usefulness of a test?

• A. Decide on using a single test for all clients and families
• B. Consider what needs to be collected and discuss with colleagues
• C. Ask the family for a test suggestion
• D. Read the statistical methods used to validate the scores

Correct answer: B

Rationale: When evaluating the clinical usefulness of a test, the best approach is to consider what specific information needs to be collected based on the clients' needs. Discussing these considerations with colleagues helps in ensuring that the chosen test is appropriate and beneficial for the individuals being assessed. Choice A is incorrect as using a single test for all clients may not account for individual differences. Choice C is incorrect as the family's suggestion alone may not align with clinical needs. Choice D is incorrect as understanding statistical methods alone may not fully capture the clinical utility of a test.

3. A child is being cared for following a head injury. Which of the following findings should indicate to the healthcare provider that the child is developing diabetes insipidus?

• A. Urine specific gravity of 1.045
• B. Sodium level of 155
• C. Blood glucose level of 45
• D. Urine output of 35 ml per hour

Correct answer: B

Rationale: In a child with a head injury, the development of diabetes insipidus can occur due to pituitary hypofunction, leading to a deficiency of antidiuretic hormone. An elevated sodium level (hypernatremia) is a key finding in diabetes insipidus due to the excessive loss of free water in the urine, resulting in increased sodium concentration in the blood.

4. As a result of opioid administration, a child's respirations are slow and shallow. Which should the nurse anticipate when assessing the child's arterial blood gas?

• A. Increased PCO2 and respiratory acidosis
• B. Decreased PCO2 and respiratory alkalosis
• C. Low pH and low PCO2
• D. High pH and high PCO2

Correct answer: A

Rationale: When a child's respirations are slow and shallow due to opioid administration, it results in hypoventilation. This leads to retaining carbon dioxide, indicated by an increased PCO2 level on arterial blood gas analysis, and subsequently causes respiratory acidosis due to the buildup of CO2 in the blood. Therefore, choice A, 'Increased PCO2 and respiratory acidosis,' is the correct answer. Choices B, C, and D are incorrect because slow and shallow respirations would not lead to decreased PCO2 or respiratory alkalosis (choice B), low pH and low PCO2 (choice C), or high pH and high PCO2 (choice D).

5. When the home health nurse visits the home of a 10-month-old child, she observes the environment for risks of injury to the child. Which observation will the nurse discuss with the mother?

• A. The mother leaves the filled mop bucket on the floor while in another room.
• B. The mother turns all pan handles to the back of the stove.
• C. The mother fills the bathtub before bringing the baby into the bathroom.
• D. When riding in a car, the child is in a car seat in the middle of the back seat.

Correct answer: A

Rationale: The correct answer is A because leaving a filled mop bucket on the floor poses a drowning hazard for a 10-month-old child. Water in the bucket can be a potential drowning risk if the child falls into it. Pan handles turned to the back of the stove prevent accidental spills or burns, which is a safety measure in the kitchen. Filling the bathtub before bringing the baby into the bathroom helps in preventing burns from hot water. Placing the child in a car seat in the middle of the back seat provides safety by minimizing the risk of injury during a car ride, but it is not the most immediate risk to address in the scenario provided.

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