Nursing Elites

1. The mother of an infant diagnosed with bronchiolitis asks the nurse what causes the disease. How should the nurse respond?

• A. Respiratory syncytial virus (RSV)
• B. Haemophilus influenzae
• C. Parainfluenza
• D. Rotavirus

Correct answer: A

Rationale: The correct answer is A: Respiratory syncytial virus (RSV). RSV is the most common cause of bronchiolitis, especially in infants. Bronchiolitis is characterized by inflammation of the small airways in the lungs. Choice B, Haemophilus influenzae, is a bacterium that can cause respiratory infections but is not the primary cause of bronchiolitis. Choice C, Parainfluenza, is a common viral infection that can cause croup and other respiratory illnesses but is not the main cause of bronchiolitis. Choice D, Rotavirus, is a virus that primarily affects the gastrointestinal system, causing diarrhea and vomiting, and is not associated with bronchiolitis.

2. A child is refusing to use the potty and having accidents, even though he has achieved toilet training. This is an example of which type of behavior?

• A. Positive reinforcement
• B. Desensitization
• C. Phobia
• D. Regression

Correct answer: D

Rationale: The correct answer is D, regression. Regression occurs when a child reverts to an earlier behavior, such as having accidents after being successfully toilet trained. This regression often happens due to stress or changes in routine. Choices A, B, and C are incorrect because positive reinforcement involves encouraging desired behavior, desensitization is a process of reducing sensitivity to a stimulus, and phobia is an intense fear or aversion to a specific object or situation, none of which directly apply to the described situation of the child having accidents after being toilet trained.

3. At what stage can infants raise their heads and gain control of their trunks before walking due to which directional pattern of development?

• A. Cephalocaudal
• B. Anterior to posterior
• C. Proximodistal
• D. Normal growth curve charts

Correct answer: A

Rationale: The correct answer is A: Cephalocaudal. The cephalocaudal pattern of development means that growth and motor control proceed from the head downward through the body. This explains why infants can raise their heads before they can sit and gain control of their trunks before walking. Choices B, C, and D are incorrect. Anterior to posterior refers to development from the front to the back, while proximodistal refers to development from the center of the body outward. Normal growth curve charts are used to track physical growth over time and are not directly related to the directional pattern of development in infants.

4. The presence of which pair of factors is a good predictor of a fluid deficit of at least 5% in an infant?

• A. Weight loss and decreased heart rate
• B. Capillary refill of less than 2 seconds and no tears
• C. Increased skin elasticity and sunken anterior fontanel
• D. Dry mucous membranes and generally ill appearance

Correct answer: D

Rationale: Dry mucous membranes and an ill appearance are good indicators of dehydration in infants, often correlating with a fluid deficit of at least 5%. Sunken fontanels and poor skin turgor are also indicative but were not options here.

5. The parent of a 1-month-old infant voices concern about the infant’s respirations. The parent states the respirations are rapid and irregular. Which information should the nurse provide?

• A. The normal respiratory rate for an infant at this age is between 20 and 30 breaths per minute.
• B. The respirations of a 1-month-old infant are normally irregular and periodically pause.
• C. An infant at this age should have regular respirations.
• D. The irregularity of the infant's respirations is concerning; I will notify the health care provider.

Correct answer: B

Rationale: The correct answer is B. Irregular respirations with periodic pauses are normal in a 1-month-old infant. Choice A is incorrect because the normal respiratory rate for an infant at this age is higher than the range provided. Choice C is incorrect as irregular respirations are expected in infants. Choice D is not appropriate as irregular respirations with periodic pauses are a normal finding in young infants and do not necessarily indicate a concern that requires immediate notification of the healthcare provider.

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