Surgery Clerkship 4 Flashcards

(46 cards)

1
Q

What vessel provides blood supply to the appendix?

A

Appendiceal artery

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2
Q

Can you have abnormal urinalysis with appendicitis?

A

Yes; mild hematuria and pyuria are common in appendicitis with pelvic inflammation, resulting in inflammation of the ureter

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3
Q

Appendicitis imaging studies

A
  • Spiral CT
  • U/S
  • AXR
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4
Q

What is the pathology?

  • Viral or bacterial infection of the GI tract, usually with vomiting and diarrhea
  • If pain is present, it’s usually after vomiting
A

Gastroenteritis

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5
Q

Difference between pain experienced in appendicitis and gastroenteritis

A
  • Gastroenteritis: Pain usually after vomiting

- Appendicitis: Pain usually before vomiting

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6
Q

Why is glucose-containing IVF contraindicated in burn patients in the first 24 hours?

A

Patient’s serum glucose will elevate on its own because of the stress response

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7
Q

Minimal urine output for adult burn patients

A

30 cc per hour

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8
Q

Ways to monitor volume status

A
  • Urine output
  • Blood pressure
  • Heart rate
  • Peripheral perfusion
  • Mental status
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9
Q

MC sign of burn wound infection

A

Discoloration of burn eschar

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10
Q

Is tetanus prophylaxis required in burn patients?

A

YES - unless they’ve been immunized within 12 months

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11
Q

What electrolyte must be closely followed acutely after a burn?

A

Na

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12
Q

Name of the gastric/duodenal ulcer associated with burn injury

A

Curling’s ulcer

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13
Q

Diagnostic test of choice for UGI bleed

A

EGD

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14
Q

What test may help identify the site of a MASSIVE UGI bleed when EGD fails to diagnose the cause?

A

Selective mesenteric angiography

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15
Q

H. Pylori tx regimens

A
  • MOC: Metronidazole, Omeprazole, Clarithromycin

- ACO: Ampicilin, Omeprazole, Clarithromycin

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16
Q

Age group in which duodenal ulcers are most common

A

40-65 years (younger than gastric ulcer)

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17
Q

Zollinger-Ellison syndrome

A

Gastrinoma and PUD (Peptic Ulcer Disease)

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18
Q

Artery involved with bleeding duodenal ulcers

A

Gastroduodenal artery

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19
Q

Are gastric or duodenal ulcers more common?

A

Duodenal (more than twice as common)

20
Q

PUD or gastritis associated with neurologic trauma or tumor

A

Cushing’s ulcer

21
Q

Ulcer at the margin of a GI anastomosis (name)

A

Marginal ulcer

22
Q

Pinprick gastric mucosal defect bleeding from an underlying vascular malformation

A

Dieulafoy’s ulcer

23
Q

Is anterior or posterior duodenal ulcer perforation more common?

24
Q

What would you see with posterior and anterior perforation of a duodenal ulcer?

A

Posterior - Bleeding from the gastroduodenal artery and possibly acute pancreatitis
Anterior - Free air

25
"Rule of two thirds" of esophageal varceal hemorrhage
- 2/3 of patients with portal HTN develop esophageal varices | - 2/3 of patients with esophageal varices bleed
26
Postemetic esophageal rupture (name of syndrome)
Boerhaave's syndrome
27
MC location of Boerhaave's perforation
Posterolateral aspect of the esophagus, 3-5 cm above the GE junction
28
Hamman's sign
"Crunching" sound in the mediastinum due to escaped air from an esophageal rupture (associated with Boerhaave's syndrome)
29
``` Associated with Boerhaave's syndrome: -Emesis -Lower chest pain -Cervical empysema (name of triad) ```
Mackler's triad
30
MCC of esophageal perforation
Iatrogenic
31
Name of the space that lies behind the stomach
Lesser sac
32
Name of the opening into the lesser sac
Foramen of Winslow
33
What do gastric parietal cells secrete?
HCl | Intrinsic factor
34
What do chief cells secrete?
Pepsinogen
35
What do mucous neck cells secrete?
Bicarbonate | Mucus
36
What do G cells secrete?
Gastrin
37
What is gas-bloat syndrome?
Inability to burp or vomit
38
Where is a gastrointestinal stromal tumor (GIST) most commonly found?
Stomach
39
Action of heparin
Binds to and activates antithrombin III
40
What reverses the effects of heparin?
Protamine
41
What lab test follows the effects of Warfarin?
PT
42
Classic therapeutic INR
2-3
43
What happens when Warfarin therapy is initiated?
Proteins C and S are initially depressed, leading to a hypercoagulable state
44
Why should Carafate not be given with H2 blockers?
Because it needs acid to activate it
45
Drug classically associated with mesenteric ischemia
Digitalis
46
Meds used to stop seizures
- Benzodiazepines | - Phenytoin