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Flashcards in Percentages Deck (30)
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1
Q

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

A

≈7%

2
Q

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

A

~7%

3
Q

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

A

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

4
Q

In what percentage of cases can ultrasound diagnose cholelithiasis?

A

98%

5
Q

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

A

~90%

6
Q

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

A

~80%

7
Q

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

A

~5%

8
Q

What percentage of American women develop breast cancer?

A

10%

9
Q

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

A

Only about 5%

10
Q

What percentage of patients with gallstones will have ra- diopaque gallstones on AXR?

A

~10%

11
Q

What percentage of kidney stones are radiopaque on AXR?

A

~90%

12
Q

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

A

~90%

13
Q

What percentage of patients with ARDS will die?

A

~40%

14
Q

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

A

2%

15
Q

What is the risk of appendiceal rupture

24 hours after the onset of symptoms?

A

~25%

16
Q

What percentage of colonic villous adenomas contain cancer?

A

~40% (Think: VILLous = VILLain)

17
Q

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

A

3%

18
Q

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

A

3%

19
Q

What percentage of porce-lain gallbladders will contain cancer?

A

~50%

20
Q

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

A

10%

21
Q

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

A

≈90%

22
Q

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

A

≈80%

23
Q

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

A

≈5%

24
Q

What percentage of patients with gallstones will have ra- diopaque gallstones on AXR?

A

≈10%

25
Q

What percentage of kidney stones are radiopaque on AXR?

A

≈90%

26
Q

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

A

≈90%

27
Q

What percentage of patients with ARDS will die?

A

≈40%

28
Q

What is the risk of appendiceal rupture

24 hours after the onset of symptoms?

A

≈25%

29
Q

What percentage of colonic villous adenomas contain cancer?

A

≈40% (Think: VILLous = VILLain)

30
Q

What percentage of porce-lain gallbladders will contain cancer?

A

≈50%