Nokea
In 90% of cases of endocarditis, the causative agent is recovered from the first 2 blood cultures. Antimicrobial pretreatment of the patient reduces the yield of blood cultures to
- A. 10%
- B. 20%
- C. 30%
- D. 40%
Correct Answer: A
Rationale: Antimicrobial pretreatment can significantly reduce the yield of blood cultures, often to 10-20%.
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X-linked conditions include:
- A. Duchenne muscular dystrophy
- B. Hypophosphataemic rickets
- C. Huntington's chorea
- D. Phenylketonuria
Correct Answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the dystrophin gene.
A child born with Down syndrome should be evaluated for which associated cardiac manifestation?
- A. Congenital heart defect (CHD)
- B. Systemic hypertension
- C. Hyperlipidemia
- D. Cardiomyopathy
Correct Answer: A
Rationale: CHD is found frequently in children with Down syndrome.
A female client who was involved in a motor vehicle collision is admitted with a fractured left femur which is immobilized using a fracture traction splint in preparation for an open reduction internal fixation (ORIF). The nurse determines that her distal pulses are diminished in the left foot. Which interventions should the nurse implement? (Select all that apply.)
- A. Offer ice chips and oral clear liquids
- B. Verify pedal pulses using a doppler pulse device
- C. Monitor left leg for pain, pallor, paresthesia, paralysis, pressure
- D. Evaluate the application of the splint to the left leg
Correct Answer: B
Rationale: These interventions assess and address potential vascular compromise, which is critical in a client with a fractured femur.
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.
Recognized features in Ehlers-Danlos syndrome include:
- A. Mutation in fibrillin gene
- B. Short stature
- C. Keratoconus
- D. Easy scarring
Correct Answer: D
Rationale: Easy scarring: Ehlers-Danlos syndrome is a connective tissue disorder characterized by hyperelastic skin, joint hypermobility, and easy bruising and scarring.