Nursing Elites

1. The charge nurse in the pediatric unit is teaching nursing students about pyloric stenosis. A student asks what causes pyloric stenosis. How should the nurse respond?

• A. One portion of the intestines invaginates or telescopes into another
• B. Hypertrophy of the circular pylorus muscle
• C. Relaxed cardiac sphincter
• D. Absent ganglion cells in the colon

Correct answer: B

Rationale: Pyloric stenosis is caused by the hypertrophy (thickening) of the circular muscle of the pylorus, leading to obstruction. Choice A is incorrect as it describes intussusception, not pyloric stenosis. Choice C is incorrect as a relaxed cardiac sphincter is related to gastroesophageal reflux. Choice D is incorrect as it describes Hirschsprung's disease, not pyloric stenosis.

2. A child has a central venous access device for intravenous (IV) fluid administration. A blood sample is needed for a complete blood count, hemogram, and electrolytes. What is the appropriate procedure to implement for this blood sample?

• A. Perform a new venipuncture to obtain the blood sample.
• B. Interrupt the IV fluid and withdraw the blood sample needed.
• C. Withdraw a blood sample equal to the amount of fluid in the device, discard, and then withdraw the sample needed.
• D. Flush the line and central venous device with saline and then aspirate the required amount of blood for the sample.

Correct answer: C

Rationale: Withdrawing and discarding a sample equal to the amount of fluid in the device ensures that the blood drawn is not diluted by the IV fluids, providing accurate lab results.

3. The clinic nurse is instructing parents about caring for a toddler with ascariasis (common roundworm). Which statement made by the parents indicates a need for further teaching?

• A. We will wash our hands often, especially after diaper changes
• B. We know that roundworm can be transmitted from person to person
• C. We will be sure to continue the nitazoxanide (Alinia) orally for 3 days
• D. We will bring a stool sample to the clinic for examination in 2 weeks

Correct answer: B

Rationale: Roundworm (ascariasis) is typically transmitted through ingestion of contaminated soil, not directly from person to person. This statement indicates a misunderstanding requiring clarification.

4. What term is appropriate terminology to use for an infant whose intrauterine growth rate was slowed and whose birth weight falls below the 10th percentile on intrauterine growth charts?

• A. Postterm
• B. Postmature
• C. Low birth weight
• D. Small for gestational age

Correct answer: D

Rationale: The correct answer is D, 'Small for gestational age.' A small for gestational age, or small-for-date, infant is any child whose intrauterine growth rate was slowed and whose birth weight falls below the 10th percentile on intrauterine growth curves. Choices A and B, 'Postterm' and 'Postmature,' refer to infants born after 42 weeks of gestational age regardless of birth weight, and do not specifically address growth rate. Choice C, 'Low birth weight,' refers to infants with a birth weight less than 2500 g (5.5 pounds) regardless of gestational age, which is a different classification compared to being small for gestational age.

5. 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.

Similar Questions