A 3-month-old infant who was previously healthy now has a persistent cough, bilateral lung crackles, and poor appetite. A grade III/VI, low-pitched, holosystolic murmur over the left lower sternal border and palpates the liver at one centimeter below the ribs. What diagnosis is likely?
- A. Atrial septal defect (ASD)
- B. Coarctation of the aorta (COA)
- C. Patent ductus arteriosis (PDA)
- D. Ventricular septal defect (VSD)
Correct Answer: D
Rationale: The symptoms above are characteristic of a VSD and may not present at birth but appear later as CHF becomes more pronounced.
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Increased TSH is seen in a neonate with:
- A. Thyroxine insensitivity
- B. Iodine deficiency
- C. Hyperbilirubinaemia
- D. Thyroid agenesis
Correct Answer: B
Rationale: Iodine deficiency: Neonates with iodine deficiency often present with increased TSH levels as the body attempts to compensate for low thyroid hormone production.
Hypoglycemia in an infant is defined as whole blood glucose level less than
- A. 40 mg/dl
- B. 50 mg/dl
- C. 60 mg/dl
- D. 80 mg/dl
Correct Answer: A
Rationale: Hypoglycemia in infants is defined as a whole blood glucose level less than 40 mg/dl, as this threshold is critical for brain function.
In common variable immunodeficiency (CVID):
- A. B cells are totally absent
- B. There is increased incidence of autoimmune disorders in families of affected members
- C. IgA levels are characteristically normal
- D. T lymphocytes are usually affected
Correct Answer: B
Rationale: CVID is associated with an increased incidence of autoimmune disorders in families of affected individuals.
The nurse is caring for a school-age child who has had a cardiac catheterization. The child tells the nurse that the bandage is “too wet.†The nurse finds the bandage and bed soaked with blood. What is the priority nursing action?
- A. Notify physician
- B. Apply new bandage with more pressure
- C. Place the child in Trendelenburg position
- D. Apply direct pressure above catheterization site
Correct Answer: D
Rationale: If bleeding occurs, direct continuous pressure is applied 2.5 cm (1 inch) above the percutaneous skin site to localize pressure over the vessel puncture. Notifying a physician and applying a new bandage can be done after pressure is applied. The nurse can have someone else notify the physician while the pressure is being maintained. It is not a helpful intervention to place the girl in the Trendelenburg position. It would increase the drainage from the lower extremities.
The primary care pediatric nurse practitioner is performing a sports physical on an adolescent whose history reveals mild aortic stenosis (AS). What will the nurse practitioner recommend?
- A. Avoidance of all sports to prevent sudden death
- B. Clearance for any sports since this is mild
- C. Evaluation by a cardiologist prior to participation
- D. Low-intensity sports
Correct Answer: C
Rationale: Children with mild AS may participate in any sport but must have annual cardiac evaluations.