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* 31 32
 #140906  
  angioplasty - 11/23/06 21:57
 
  The following vignette applies to the next 2 items.


You are asked to see a 63-year-old woman who is in the hospital after undergoing an operation 4 days ago for a displaced tibia-fibula fracture. The operation was uncomplicated. Preoperative chest x-ray film was normal. She has a transurethral urinary catheter, which was placed during the operation 4 days ago. Today she has a temperature of 37.9°C (100.2°F). Laboratory studies disclose mild leukocytosis. Urinalysis shows greater than 100 WBC/hpf and many bacteria. You suspect that she has a urinary tract infection.

Item 1 of 2
tract infection in this patient?

A

) Cleaning the perineum twice daily with povidone-iodine

B

) Irrigating the bladder every 8 hours

C

) Removing the catheter immediately post-operation

D

) Treating the patient with prophylactic antibiotics

E

) Using only silver-coated urinary catheters

Item 2 of 2

32.

Incidence of Bacteruria Related to Catheter Use

Study Randomized Suprapubic Catheter Transurethral Catheter Odds Ratio +95% CI

A No 2/25 21/31 0.04(0.01-0.24)

B Yes 10/48 20/44 0.32(0.11-0.86)

C Yes 2/32 16/34 0.08(0.01-0.41)

D Yes 8/32 5/40 1.87(0.48-8.01)

*CI=confidence interval

A Colleague suggests to you that suprapubic catheters can decrease a patient's risk for bacterial colonization. You identify four studies in the medical literature that compare the incidence of bacteruria in patients with a transurethral catheter versus patients with a suprapubic catheter. The study results are shown. Which of the following is the most important criterion related to the validity of these data?

A

) Confidence interval

B

) The number of patients with bacteriuria

C

) Odds ratio

D

) Sample size

E

) Study design


31. Which of the following would have been the most appropriate method of preventing a urinary
 
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* Re:31 32
#569682
  pk007 - 11/23/06 23:10
 
  31.C
32.????
 
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* Re:31 32
#569769
  tea - 11/23/06 23:53
 
  angio, how many qs here? I saw 3, did I eat and drink too much tonight? Happy thanksgiving to all.
d
b
d
 
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