A patient who has scabies is treated with permethrin 5 cream. The ...

[Tirant22]

A patient who has scabies is treated with permethrin 5 cream. The patient calls the nurse 1 week after treatment to report continued intense itching. What will the nurse tell this patient?
 
  a. This is a hypersensitivity reaction to the permethrin.
  b. This is the body's normal response to the scabies mites.
  c. You will need a second treatment of the permethrin.
  d. You will need to take ivermectin to clear up the infestation.

Question 2

A parent has been instructed to apply a combination product of pyrethrins with piperonyl butoxide RID to treat head lice in a child. The parent asks the nurse why it is necessary to re-peat the application in 9 days.
 
  The nurse will respond by telling the parent that: a. a second treatment helps combat medica-tion resistance.
  b. the dose needed to kill lice is too toxic to use all at once.
  c. the combination is active only against adult lice and not ova.
  d. the second dose helps rid the hair of nits and ova.

[Beatricemm]

Answer to Question 1

B
Intense itching continues for a week or two following treatment with permethrin because the pa-tient's hypersensitivity reaction to the burrowed dead mites, feces, and eggs continues and itch-ing will continue until the body recovers. It is not a hypersensitivity reaction to the medication. Permethrin is effective in just one application. Ivermectin is not indicated.

Answer to Question 2

C
Pyrethrins plus piperonyl butoxide is given as two treatments, because the combination is active against adult lice. Ova are not affected, so a second dose is given when those hatch. A second dose does not affect medication resistance. The combination is not toxic in therapeutic doses. Nits and ova are not removed with a second treatment.

[Tirant22]

TYSM

[JaynaD87]

Gracias!