A patient with atrial fibrillation is taking verapamil Calan. The ...

[KimWrice]

A patient with atrial fibrillation is taking verapamil Calan. The patient has read about the drug on the Internet and wants to know why a drug that affects the rate of ventricular contraction is used to treat an abnormal atrial contraction.
 
  What will the nurse tell the patient? a. Drugs that treat ventricular dysrhythmias help to restore normal sinus rhythm.
  b. Atrial dysrhythmias can have life-threatening effects on ventricular function.
  c. Treating ventricular dysrhythmias helps prevent the likelihood of stroke.
  d. When ventricular contraction slows, atrial contraction is also slowed.

Question 2

An infant has a severe contact diaper dermatitis. The provider orders triamcinolone acetonide Kenalog 0.1 cream to be applied 3 times daily. When teaching the infant's parents about this medication, the nurse will instruct them to apply:
 
  a. a thick layer and massage the cream into the skin.
  b. a thin layer and leave the diaper open as much as possible.
  c. the cream and place an occlusive dressing over the area.
  d. the cream and put the infant's diaper on tightly.

Question 3

Which immune responses can result in harm to the body? (Select all that apply.)
 
  a. Activation of the complement system
  b. Autoimmune response
  c. IgE binding to mast cells and basophils
  d. Opsonization
  e. Recognition of MHC molecules as nonself

[Briannahope]

Answer to Question 1

B
Dysrhythmic activity in the atria does not significantly reduce cardiac output but can be danger-ous when dysrhythmic impulses cross the AV node, causing ventricular dysrhythmias, which can be life threatening. Treating ventricular dysrhythmia helps improve ventricular pumping. These drugs do not restore normal sinus rhythm. To prevent stroke, an anticoagulant, such as warfarin, is used. Slowing ventricular contraction does not affect the rate of atrial contraction. Restoring normal sinus rhythm requires cardioversion, short-term treatment with amiodarone or sotalol, or RF ablation of the dysrhythmia source.

Answer to Question 2

OMG..This is soo helpful. Thank you.

Answer to Question 3

B, C, E
The autoimmune response causes the immune system to attack the body's own cells. The hyper-sensitivity response, mediated by IgE, causes the release of harmful chemical mediators. Recog-nition of MHC molecules as nonself in a transplanted organ can cause organ rejection. Activation of the complement system causes a cascade of reactions that assist in the immune response. Opsonization is a process that assists with phagocytosis.

[KimWrice]

Gracias!

[cassie_ragen]

Excellent