Nokea
Which congenital cardiac defect(s) cause(s) increased pulmonary blood flow? (Select all that apply.)
- A. Atrial septal defects (ASDs)
- B. Tetralogy of Fallot
- C. Dextroposition of aorta
- D. Patent ductus arteriosus
Correct Answer: D
Rationale: The congenital heart defects that cause increased pulmonary blood flow are ASDs, VSDs, and patent ductus arteriosus.
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Increased fetal haemoglobin is seen in:
- A. Haemoglobin H disease
- B. β-thalassaemia major
- C. Fanconi's anaemia
- D. Pyruvate kinase deficiency
Correct Answer: B
Rationale: Increased fetal haemoglobin (HbF) is a compensatory mechanism in β-thalassaemia major to counteract the reduced production of adult haemoglobin (HbA).
A client with Guillain-Barre syndrome has paralysis of all extremities and requires mechanical ventilation. The nurse observes that the client is not blinking. Which action should the nurse implement?
- A. Protect cornea with lubricant and eye shields
- B. Administer artificial tears every hour.
- C. Encourage the client to blink every 10 minutes.
- D. Keep the client's eyes closed with adhesive tape.
Correct Answer: A
Rationale: Lack of blinking increases the risk of corneal damage. Lubricants and eye shields prevent dryness and injury to the cornea.
Restrictive cardiomyopathy (RCM) is characterized by all the following EXCEPT
- A. normal ventricular chamber dimensions
- B. normal myocardial wall thickness
- C. preserved systolic function
- D. normal atrial chamber dimensions
Correct Answer: D
Rationale: Restrictive cardiomyopathy is characterized by impaired ventricular filling and high diastolic pressures despite normal systolic function.
In congenital hypertophic pulmonary stenosis
- A. Metabolic alkalosis occurs
- B. In some cases can be treated with non surgical methods
- C. During surgery tumor is removed
- D. Is a caus of conjugated hyperbilirubinaemia in neonate
Correct Answer: B
Rationale: Some cases of congenital hypertrophic pulmonary stenosis can be managed with non-surgical techniques like balloon valvuloplasty.
The parents of a 3-month-old ask why their baby will not have an operation to correct a ventricular septal defect (VSD). The nurse's best response is:
- A. It is always helpful to get a second opinion about any serious condition like this.
- B. Your baby's defect is small and will likely close on its own by 1 year of age.
- C. It is common for physicians to wait until an infant develops respiratory distress before they do the surgery.
- D. With a small defect like this, they wait until the child is 10 years old to do the surgery.
Correct Answer: B
Rationale: Most small VSDs close spontaneously within the first year of life.