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Author Question: A 1-year-old child with cretinism has been receiving 8 mcg/kg/day of levothyroxine (Synthroid). The ... (Read 30 times)

joesmith1212

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on: Jul 23, 2018
A 1-year-old child with cretinism has been receiving 8 mcg/kg/day of levothyroxine (Synthroid). The child comes to the clinic for a well-child check up. The nurse will expect the provider to:
 
  a. change the dose of levothyroxine to 6 mcg/kg/day.
  b. discontinue the drug if the child's physical and mental development is normal.
  c. increase the dose to accommodate the child's increased growth.
  d. stop the drug for 4 weeks and check the child's TSH level.

Question 2

An older adult patient is diagnosed with hypothyroidism. The initial free T4 level is 0.5 mg/dL, and the TSH level is 8 microunits/mL. The prescriber orders levothyroxine (Levothroid) 100 mcg/day PO. What will the nurse do?
 
  a. Administer the medication as ordered.
  b. Contact the provider to discuss giving the levothyroxine IV.
  c. Request an order to give desiccated thyroid (Armour Thyroid).
  d. Suggest that the provider lower the dose.


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frankwu0507

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Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: A
In the treatment of cretinism, thyroid dosing decreases with age. For infants 6 to 12 months of age, the dose is 6 mcg/kg/day. At 1 year of age, the dose is reduced to 5 to 6 mcg/kg/day. For all children, treatment should continue for 3 years. It is incorrect to increase the dose with age. After 3 years of therapy, the patient undergoes a trial of 4 weeks without the drug, followed by assessment of the TSH and T4 levels, to determine whether the drug may be discontinued.

Answer to Question 2

ANS: D
In older adult patients, initial dosing of levothyroxine should start low and be increased gradually. A typical starting dose for an elderly patient is 25 to 50 mcg/day. It is not correct to administer the medication without questioning the provider. Unless the patient has signs of myxedema, there is no need to give the medication IV. Desiccated thyroid is no longer used except in patients who have been taking it long term.


joesmith1212

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Reply 2 on: Jul 23, 2018
Excellent

cassie_ragen

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Reply 3 on: Yesterday
Gracias!

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