Nokea
Normal Heart
- A. Ventricular septal depolarization occurs from Lt ï‚® Rt
- B. During tachycardia diastolic time reduced than systolic time
Correct Answer: B
Rationale: During tachycardia, diastolic time is significantly reduced compared to systolic time.
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The clinic nurse reviews the record of a child just seen by the health care provider and diagnosed with suspected aortic stenosis. The nurse expects to note documentation of which clinical manifestation specifically found in this disorder?
- A. Pallor
- B. Hyperactivity
- C. Exercise intolerance
- D. Gastrointestinal disturbances
Correct Answer: C
Rationale: Exercise intolerance is a common clinical manifestation of aortic stenosis due to the heart's inability to pump sufficient blood during increased physical activity.
Features differentiating renal tubular acidosis type II from type I include:
- A. Increased anion gap
- B. Nephrocalcinosis
- C. Urinary pH can be lowered < 5.5 in ammonium chloride loading test in type I
- D. Aminoaciduria
Correct Answer: C
Rationale: In type I renal tubular acidosis, urinary pH can be lowered below 5.5 during an ammonium chloride loading test, unlike in type II.
Common reasons for doing a BMT in children are:
- A. SCID (severe combined immunodeficiency)
- B. Acute lymphoblastic leukemia
- C. CML
- D. Gaucher's disease
Correct Answer: A
Rationale: The correct answer is A because SCID is a primary indication for bone marrow transplant (BMT) in children. The other options (b-e) are also indications but less common.
Management of a patient with an INR of 8.7 from warfarin overdose includes:
- A. Vitamin K
- B. Cryoprecipitate
- C. Fresh frozen plasma
- D. Desmopressin
Correct Answer: A
Rationale: The correct answer is A because vitamin K is the primary treatment for reversing warfarin overdose. The other options (b-e) are less commonly used or not indicated for this situation.
The nurse is monitoring an infant with a congenital heart disease closely for signs of heart failure. Which early sign should the nurse be most concerned about?
- A. Pallor
- B. Cough
- C. Tachycardia
- D. Slow and shallow breathing
Correct Answer: C
Rationale: Tachycardia is an early sign of heart failure in infants because the heart attempts to compensate for decreased cardiac output by increasing the heart rate.