The nurse is teaching a nursing student about the mechanism by ...

[justinmsk]

The nurse is teaching a nursing student about the mechanism by which antimicrobial agents achieve selective toxicity. Which statement by the student indicates a need for further teaching?
 
  a. Some agents disrupt the bacterial cell wall.
  b. Some agents act to block the conversion of para-aminobenzoic acid (PABA) to folic acid.
  c. Some agents cause phagocytosis of bac-terial cells.
  d. Some agents weaken the cell wall, caus-ing cell wall lysis.

Question 2

A clinic nurse is assessing an adolescent male patient who has been receiving androgen therapy for hypogonadism via a transdermal patch. The patient's last clinic visit was 4 weeks earlier.
 
  Which part of the interval history is of most concern to the nurse? a. Five-pound weight gain
  b. Increased growth of pubic hair
  c. Rash at the site of the patch
  d. Presence of acne

[ambernicolefink]

Answer to Question 1

C
Antimicrobial agents do not cause phagocytosis of bacterial cells. They do disrupt and weaken the bacterial cell wall; because human cells do not have cell walls, antimicrobial agents are not toxic to human cells. Some agents block the conversion of PABA to folic acid; humans do not synthesize folic acid and are not harmed by this process.

Answer to Question 2

A
Patients receiving testosterone may experience edema secondary to sodium and water retention. Treatment involves discontinuing the drug and giving diuretics if needed. Masculinization of both females and males may occur and boys may experience growth of pubic hair, which is an expected effect. Patients may develop a sensitivity rash at the site of transdermal application. Acne is an expected effect.

[justinmsk]

TYSM

[bdobbins]

Gracias!