Nokea
The most common coronary artery anomaly in Tetralogy of Fallot is
- A. Left anterior descending artery from right aortic sinus
- B. Single coronary artery from right aortic sinus
- C. Single coronary artery from left aortic sinus
- D. Left circumflex coronary artery from right aortic sinus
Correct Answer: A
Rationale: The most common coronary artery anomaly in Tetralogy of Fallot is the left anterior descending artery arising from the right aortic sinus.
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Sudden death in an athlete immediately after forceful blunt trauma to the chest is most likely
- A. commotio cordis
- B. myocardial infarction
- C. lacerated coronary artery
- D. ruptured cardiac tendineae
Correct Answer: A
Rationale: Commotio cordis occurs due to sudden arrhythmias triggered by chest trauma during a vulnerable phase of the cardiac cycle.
Regarding fluid and electrolyte homeostasis in a child:
- A. Normal maintenance requirement in a child weighing 20 kg is 1.5 litre/day
- B. A fluid deficit of 50ml/kg produces a body weight loss of 10%
- C. Hypotension is a useful sign ,which indicates moderate dehydration
- D. Normal maintenance needs of sodium are 5-6mmol/kg/day
Correct Answer: B
Rationale: A fluid deficit of 50ml/kg producing a 10% body weight loss is a well-established clinical guideline for assessing dehydration in children. Hypotension is a late sign of severe dehydration, not moderate dehydration.
Diamond Blackfan anemia is different from Transient Erythroblastopenia of Childhood as the former has
- A. Increased adenosine deaminase
- B. Mean corpuscular volume is decreased
- C. Female predominance
- D. Antecedent history of viral illness
Correct Answer: A
Rationale: Diamond Blackfan anemia is characterized by increased adenosine deaminase activity, unlike Transient Erythroblastopenia of Childhood.
A nurse is caring for a child with Down syndrome. Which statement by the parent indicates the need for further teaching?
- A. I will make sure my child has regular hearing screenings.
- B. I will encourage my child to be active and participate in play.
- C. I should monitor my child's thyroid function regularly.
- D. I should avoid giving my child a multivitamin supplement.
Correct Answer: D
Rationale: Children with Down syndrome may benefit from a multivitamin supplement, especially if they are at risk for nutritional deficiencies.
A nurse assists a male client with Parkinson's disease (PD) to ambulate in the hallway. The client appears to 'freeze' and then carefully lifts one leg and steps forward. He tells the nurse that he is pretending to step over a crack on the floor. How should the nurse respond?
- A. Re-orient the client to his present location and circumstances
- B. Confirm that this is an effective technique to help with ambulation
- C. Assist the client to a carpeted area where he can walk more easily
- D. Plan to assess the client's cognition after returning to his room
Correct Answer: B
Rationale: Pretending to step over a crack is a known technique that can help clients with PD overcome freezing episodes.