The nurse is administering a purified protein derivative (PPD) ...

[madam-professor]

The nurse is administering a purified protein derivative (PPD) test to a homeless client. Which of the following statements concerning PPD testing is true?
 
  a. A positive reaction indicates that the client has active tuberculosis (TB).
  b. A positive reaction indicates that the client has been exposed to the disease.
  c. A negative reaction always excludes the diagnosis of TB.
  d. The PPD can be read within 12 hours after the injection.

Question 2

Identify the desired effects of general anesthesia. Select all that apply.
 
  a. Reduction of risk
  b. Analgesia
  c. Amnesia
  d. Muscle relaxation

[ergserg]

Answer to Question 1

B
A positive reaction means the client has been exposed to TB; it isn't conclusive of the presence of active disease. A positive reaction consists of palpable swelling and induration of 5 to 15 mm. It can be read 48 to 72 hours after the injection. In clients with positive reactions, further studies are usually done to rule out active disease. In immunosuppressed clients, a negative reaction doesn't exclude the presence of active disease.

Answer to Question 2

B, C, D
General anesthesia is used to control pain (analgesia), relax muscles, and promote amnesia. Anesthesia is not used for the purpose of obtaining a reduction in risk potential; however, surgical risk is influenced by the type of anesthesia used.

[madam-professor]

TYSM

[Dominic]

Excellent