HESI RN
HESI Practice Test Pediatrics
1. What information should the nurse provide the parents of a 3-year-old boy with Duchenne muscular dystrophy (DMD) who are concerned about having more children?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family.
- B. The male infant had a viral infection that went unnoticed and untreated, leading to muscle damage.
- C. The mother's lack of the protein dystrophin can impact the XXXX muscle groups in males.
- D. Birth trauma during a breech vaginal birth can damage the spinal cord, resulting in muscle weakness.
Correct answer: A
Rationale: The correct answer is A. Duchenne muscular dystrophy is an inherited X-linked recessive disorder that primarily affects male children in the family. Since it is X-linked, sons inherit the mutation from their mothers who are carriers of the abnormal gene. Therefore, the nurse should explain to the parents that any future sons they have would have a 50% chance of inheriting the mutation and having DMD, while daughters would have a 50% chance of being carriers like the mother.
2. A child who weighs 25 kg is receiving IV ampicillin at a dose of 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?
- A. 1875 mg
- B. 625 mg
- C. 2000 mg
- D. 1500 mg
Correct answer: A
Rationale: To calculate the correct dose for each administration, you first need to find the total daily dose: 300 mg/kg * 25 kg = 7500 mg/day. Since this total dose is divided into equally divided doses every 4 hours, there are 6 doses in 24 hours. Therefore, 7500 mg ÷ 6 doses = 1250 mg per dose. The nurse should administer 1250 mg every 4 hours, resulting in a total of 1875 mg for each dose in a 24-hour period. Choice A, 1875 mg, is the correct answer. Choice B, 625 mg, is incorrect as it does not consider the total daily dose and the frequency of administration. Choice C, 2000 mg, is incorrect as it is not the calculated dosage based on the given parameters. Choice D, 1500 mg, is also incorrect as it does not reflect the correct dosage calculation for each dose.
3. Which developmental behavior should the practical nurse identify as normal for a 6-month-old infant?
- A. Rolls over completely.
- B. Creeps on all fours.
- C. Pulls self to a standing position.
- D. Assumes a sitting position independently.
Correct answer: A
Rationale: The correct answer is A: 'Rolls over completely.' By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy. Creeping usually occurs around 9-10 months, pulling self to a standing position around 9-12 months, and assuming a sitting position independently around 8 months. Therefore, at 6 months, rolling over completely is the most expected developmental behavior.
4. The healthcare provider is caring for a 6-year-old child diagnosed with glomerulonephritis. Which finding should the healthcare provider report promptly to the healthcare provider?
- A. Dark-colored urine
- B. Mild periorbital edema
- C. Blood pressure of 150/95 mm Hg
- D. Urine output of 250 mL in 24 hours
Correct answer: C
Rationale: Hypertension is a serious complication of glomerulonephritis, as it can lead to further renal damage. A blood pressure reading of 150/95 mm Hg is elevated and should be reported promptly to the healthcare provider for immediate management to prevent complications. Dark-colored urine can be a common symptom of glomerulonephritis due to blood in the urine but is not as urgent as managing hypertension. Mild periorbital edema can also be seen in glomerulonephritis but is not as concerning as elevated blood pressure. Urine output of 250 mL in 24 hours indicates oliguria, which is a concern, but addressing hypertension takes priority to prevent further renal damage.
5. The nurse determines that an infant admitted for surgical repair of an inguinal hernia voids a urinary stream from the ventral surface of the penis. What action should the nurse take?
- A. Document the finding
- B. Palpate scrotum for testicular descent
- C. Assess for bladder distension
- D. Auscultate bowel sounds
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to document the finding. The infant voiding a urinary stream from the ventral surface of the penis suggests hypospadias, a condition where the urethral opening is on the underside of the penis. This finding is crucial information that needs to be documented for further evaluation. Palpating the scrotum for testicular descent, assessing for bladder distension, and auscultating bowel sounds are not appropriate actions based on the presented scenario and do not address the specific concern of the urinary stream location.
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