Nursing Elites

1. The parents of a 3-year-old boy with Duchenne muscular dystrophy (DMD) ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide these parents?

• 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 lack of the protein dystrophin in the mother can impact the XXX muscle groups of males.
• D. Spinal cord damage due to birth trauma during a breech vaginal birth weakens the muscles.

Correct answer: A

Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder, meaning the gene mutation causing DMD is located on the X chromosome. Males have one X chromosome and one Y chromosome, so if the X chromosome they inherit from their mother carries the mutated gene, they will develop DMD. Females have two X chromosomes, so they are carriers of the gene but are usually not affected by the disease. Therefore, the nurse should explain to the parents that DMD is an inherited X-linked recessive disorder that primarily affects male children in the family.

2. The nurse is caring for a 2-day old neonate who has not passed meconium and has a swollen abdomen. The healthcare provider reviews the flat plate X-ray of the abdomen and makes a tentative diagnosis of Hirschsprung's disease. Which pathophysiological process is consistent with this neonate's clinical picture?

• A. The congenital absence of parasympathetic ganglion cells to large intestine produces no peristalsis.
• B. Pyloric obstruction causes reflux and projectile hematemesis.
• C. Partial imperforated anal opening limits passage of stools.
• D. Peristalsis moving against the intestinal obstruction causing hyperactivity of the bowel.

Correct answer: A

Rationale: Hirschsprung's disease is caused by the absence of parasympathetic ganglion cells in the large intestine, leading to a lack of peristalsis and obstruction.

3. The healthcare provider prescribes Amoxicillin 500mg PO every 8hrs for a child who weighs 22 pounds. The available suspension is labeled Amoxicillin Suspension 250mg/5ml. The recommended maximum dose is 50mg/kg/24hr. How many mL should the nurse administer in a single dose based on the child’s weight?

• A. 10mL
• B. 15mL
• C. 7.5mL
• D. 5mL

Correct answer: A

Rationale: To calculate the dose for the child weighing 22 pounds, first convert the weight to kg: 22 lbs ÷ 2.2 = 10 kg. The maximum dose based on weight would be 10 kg × 50 mg/kg/24hr = 500 mg/24hr. Since the medication is prescribed every 8 hours, the dose for each administration would be 500 mg ÷ 3 doses = 166.67 mg. As the available suspension is 250mg/5ml, the nurse should administer 166.67 mg ÷ 250 mg/mL = 0.67 mL per dose. However, since it's not practical to administer a fraction of a milliliter, the nurse should round up to the nearest appropriate dose, which is 10mL.

4. A mother who is breastfeeding her baby receives instructions from the nurse. Which instruction is most effective to prevent nipple soreness?

• A. Wear a cotton bra.
• B. Increase nursing time gradually.
• C. Correctly place the infant on the breast.
• D. Manually express a small amount of milk before nursing.

Correct answer: C

Rationale: The most effective instruction to prevent nipple soreness when breastfeeding is to correctly place the infant on the breast. Proper latch-on techniques ensure that the baby is properly positioned, reducing the risk of nipple soreness. When the baby is positioned correctly, they can nurse effectively without causing discomfort to the mother.

5. What should the nurse recommend to a woman with mastitis?

• A. Apply heat to the affected area.
• B. Apply cold compresses to the affected area.
• C. Use a breast pump to express milk.
• D. Continue breastfeeding as usual.

Correct answer: A

Rationale: The nurse should recommend applying heat to the affected area for a woman with mastitis. Heat can help reduce pain and inflammation associated with mastitis by improving blood flow to the area and promoting healing.

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