To prevent yellow or brown discoloration of teeth in children, ...

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To prevent yellow or brown discoloration of teeth in children, tetracyclines should not be given:
 
  a. to children once the permanent teeth have developed.
  b. to patients taking calcium supplements.
  c. to pregnant patients after the fourth month of gestation.
  d. with dairy products or antacids.

Question 2

A patient recently began receiving clindamycin (Cleocin) to treat an infection. After 8 days of treatment, the patient reports having 10 to 15 watery stools per day. What will the nurse tell this patient?
 
  a. The provider may increase the clindamycin dose to treat this infection.
  b. This is a known side effect of clindamycin, and the patient should consume extra fluids.
  c. The patient should stop taking the clindamycin now and contact the provider immediately.
  d. The patient should try taking Lomotil or a bulk laxative to minimize the diarrheal symptoms.

[Expo]

Answer to Question 1

ANS: C
Tetracyclines bind to calcium in developing teeth, resulting in yellow or brown discoloration. They should not be given to pregnant women after the fourth month of gestation, because they will cause staining of deciduous teeth in the fetus. In children, discoloration occurs when tetracyclines are given between the ages of 4 and 8 years, because this is when permanent teeth are developing. Tetracycline binds with calcium, so absorption is diminished when the drug is given with calcium supplements, dairy products, or calcium-containing antacids; however, this does not affect tooth development.

Answer to Question 2

ANS: C
Clostridium difficileassociated diarrhea (CDAD) is the most severe toxicity of clindamycin; if severe diarrhea occurs, the patient should be told to stop taking clindamycin immediately and to contact the provider so that treatment with vancomycin or metronidazole can be initiated. Increasing the dose of clindamycin will not treat this infection. Consuming extra fluids while still taking the clindamycin is not correct, because CDAD can be fatal if not treated. Taking Lomotil or bulk laxatives only slows the transit of the stools and does not treat the cause.

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Gracias!

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TYSM