Surgical Percentages Chapter4 P38-40 Flashcards Preview

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Flashcards in Surgical Percentages Chapter4 P38-40 Deck (19)
1

What percentage of people in the United States will
develop acute appendicitis?
P38

β‰ˆ7%

2

What is the acceptable percentage of normal appendices removed with the preoperative diagnosis of appendicitis?
P38

Up to 20%; it is better to remove some normal appendices than to miss a case of acute appendicitis, which could result in a ruptured appendix

3

In what percentage of cases can ultrasound diagnose
cholelithiasis?
P38

98%

4

In what percentage of cases does a lower GI bleed stop
spontaneously?
P38

β‰ˆ90%

5

In what percentage of cases does a UGI bleed stop
spontaneously?
P38

β‰ˆ80%

6

What percentage of patients undergoing laparotomy
develop a postoperative small bowel obstruction at
some time later?
P39

β‰ˆ5%

7

What percentage of American women develop breast cancer?
P39

10%

8

What percentage of patients with acute appendicitis will
have a radiopaque fecalith on abdominal x-ray (AXR)?
P39

Only about 5%

9

What percentage of patients with gallstones will have radiopaque gallstones on AXR?
P39

β‰ˆ10%

10

What percentage of kidney stones are radiopaque on AXR?
P39

β‰ˆ90%

11

At 6 weeks, wounds have achieved what percentage of
their total tensile strength?
P39

β‰ˆ90%

12

What percentage of patients with ARDS will die?
P39

β‰ˆ40%

13

What percentage of the population have a Meckel’s
diverticulum?
P39

2%

14

What is the risk of appendiceal rupture 24 hours after the onset of symptoms?
P39

β‰ˆ25%

15

What percentage of colonic villous adenomas contain cancer?
P39

β‰ˆ40% (Think: VILLous = VILLain)

16

One unit of packed RBCs increases the hematocrit by
how much?
P39

3%

17

Additional 1 liter by nasal cannula increases FIO2 by
how much?
P40

3%

18

What percentage of porcelain gallbladders will contain
cancer?
P40

β‰ˆ50%

19

What percentage of patients with gastric ulcers have
cancer on biopsy?
P40

10%