A nurse is asked to record preductal and postductal oxygen ...

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A nurse is asked to record preductal and postductal oxygen saturations on an infant with possible persistent pulmonary hypertension. Where does the nurse assess the preductal saturation?
 
  A.
  Earlobe
  B.
  Left finger
  C.
  Left great toe
  D.
  Right finger

Question 2

A child diagnosed with congenital hypothyroidism is being dismissed from the NICU. What information should the nurse plan to teach the parents?
 
  A.
  Avoid foods such as fish, milk, or meat-based broth soups.
  B.
  The correct dose of levothyroxine (Synthroid) is 10-15 mg/kg/day.
  C.
  The correct dose of levothyroxine (Synthroid) is 10-15 g/kg/day.
  D.
  Regular eye examinations should be undertaken every 6 months.

[olderstudent]

Answer to Question 1

ANS: D
Measuring the preductal (right radial) pulse oximetry and comparing it to the postductal (left radial) can help diagnose persistent pulmonary hypertension. A difference of 5 or more demonstrates the right-to-left shunt that this condition produces.

Answer to Question 2

ANS: C
The treatment for congenital hypothyroidism is Synthroid, the dose of which is 10-15 g/kg/day. The other dose is too high. Avoiding fish, milk, and meat-based broths is part of the diet for homocystinuria. Regular eye exams are not part of the treatment plan for hypothyroidism.