Nokea
The MOST common cause of pulmonary hypertension in pediatric patients is
- A. idiopathic pulmonary hypertension
- B. pulmonary venoocclusive disease
- C. left-sided valvular heart disease
- D. chronic obstructive pulmonary disease
Correct Answer: A
Rationale: Idiopathic pulmonary hypertension is a rare but recognized cause of pulmonary hypertension in children.
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During preoperative teaching for a male client scheduled for repair of an inguinal hernia, the client tells the nurse that he has had several surgeries and understands the need to perform coughing and deep breathing exercises after surgery. How should the nurse respond?
- A. Ask for a demonstration of these exercises
- B. Explain that coughing should be avoided
- C. Review the client’s previous surgical history
- D. Document the client's understanding of teaching
Correct Answer: A
Rationale: Asking for a demonstration ensures that the client understands the proper technique for coughing and deep breathing exercises.
Features predisposing to NEC (necrotising enterocolitis) in the neonatal period include:
- A. Short fixation
- B. Asphyxia
- C. Umbilical artery catheter
- D. Maternal Crohn's disease
Correct Answer: B
Rationale: Asphyxia is a known risk factor for necrotizing enterocolitis (NEC) due to its effect on intestinal blood flow, leading to bowel ischemia and increased risk of bacterial translocation.
Causes of a discrete osteolytic bone lesion in a two-year-old include:
- A. Rickets
- B. Non-accidental injury
- C. Eosinophilic granuloma
- D. Acute lymphoblastic leukaemia
Correct Answer: C
Rationale: Eosinophilic granuloma is a benign bone lesion that can present with osteolytic lesions, typically seen in children as part of Langerhans cell histiocytosis.
Which statement by the mother of a child with rheumatic fever (RF) indicates that she has an understanding of prevention for her other children?
- A. “Whenever one of them gets a sore throat, I will give that child an antibiotic.â€
- B. “There is no treatment since it is viral and must run its course.â€
- C. “If their culture is positive for group A streptococcus, I will give them a full course of their antibiotic.â€
- D. “If their culture is positive for staphylococcus A, I will give them a full course of their antibiotic.â€
Correct Answer: C
Rationale: A positive culture for group A streptococcus indicates a bacterial infection that requires a full course of antibiotics to prevent rheumatic fever, which can develop as a complication of untreated strep throat.
The following are true about water excretion:
- A. It is influenced by the proximal tubule
- B. It is influenced by vasopressin
- C. It depends on erythropoietin
- D. It is influenced by the ascending limb of the loop of Henle
Correct Answer: B
Rationale: It is influenced by vasopressin: Vasopressin (ADH) regulates water reabsorption in the kidneys, primarily by acting on the collecting ducts, enhancing water retention in response to dehydration.