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254 Cards in this Set

  • Front
  • Back
Standard biochemical parameters that indicate impairment in the visceral protein mass include a serum albumin of ____ or a serum transferrin of ___
less than 3 g/dL or a serum transferrin of less than 150 mg/dL.
What should you do with Ace inhibitors for surgery?
should be continued except day of operation
What should you do with Aspirin or clopidogrel (Plavix)?
Should be discontinued at least 1 week prior to the planned operation if bleeding is a significant risk or concern; may be continued usually at the discretion of the surgeon
What should you do with Oral anticoagulants (warfarin, coumadin)?
Should be discontinued at least 5 days prior
What should you do with diuretics?
discontinued day of operation
What should you do with cholesterol lowering meds?
discontinued day of operation
what gas is used to sterilize?
ethylene oxid
how do you treat diabetics during surgery?
Administer subcutaneously, on the morning of the operation, one-third to one-half the patient’s usual dose of long-acting insulin plus one-third to one-half the usual dose of short-acting insulin. This is followed by intravenous infusion of 5% or even 10% glucose at a rate of 100 mL/h preoperatively and intraoperatively. If the operation is prolonged, potassium chloride should be added at a rate of 20 meq/h.
Dressings over closed wounds should be removed on ___
the third or fourth postoperative day
Generally, skin sutures or skin staples may be removed by ___
the fifth postoperative day and replaced by tapes
What does Cryoprecipitate do?
improves platelet aggregation and adhesion and decreases bleeding in uremic patients.
When are Granulocyte transfusions indicated?
in severely neutropenic (absolute neutrophil count < 0.5 × 103/μL) patients with bacterial sepsis who have not responded to optimum antibiotic therapy after 48–72 hours
What is a seroma?
a fluid collection in the wound other than pus or blood.
Sutures must be placed ___from the wound edge and about ___ apart.
2–3 cm. 1 cm
Although wound dehiscence may occur at any time following wound closure, it is most commonly observed between___
the fifth and eighth postoperative days,
Atelectasis is usually manifested by ____
fever (pathogenesis unknown), tachypnea, and tachycardia.
If needed, heparin can be restarted ___after surgery along with oral anticoagulation.
36–48 hours
Ventricular dysrhythmias should be immediately treated with ___
lidocaine 1mg/kg
When does postoperative parotitis occur?
Second week post op
most postoperative intussusceptions are ____
ileoileal or jejunojejunal.
patients with ulcerative colitis and Crohn disease are peculiarly susceptible to ___
seizures with loss of consciousness after surgery.
Most overt psychiatric derangements are observed after the ___ postoperative day.
third
___is one of the most common causes of fever after the third postoperative day.what are the symptoms?
Phlebitis. The symptomatic triad of induration, edema, and tenderness is characteristic.
Fever within 48 hours after surgery is usually caused by ___
atelectasis.
Secondary healing occurs in wounds left open through___
the formation of granulation tissue and eventual coverage of the defect by migration of epithelial cells.
Intracellular water represents about ___ of total body water.
two-thirds
ECF is divided into two compartments:_____ and ___
(1) plasma water, comprising approximately 25% of ECF, or 5% of body weight; and (2) interstitial fluid, comprising 75% of ECF
About ___of esophagus are normally below the diaphragm
2-4cm
The musculature of the pharynx and upper third of the esophagus is ____the remainder is ___.
skeletal in type (striated muscle); smooth muscle
the upper end of esophagus is supplied by ___
branches from the inferior thyroid arteries.
The thoracic portion of the esophagus receives blood from the ____
bronchial arteries and from esophageal branches originating directly from the aorta.
The mucosal lining of the esophagus consists of ___
stratified squamous epithelium that contains scattered mucous glands throughout.
The esophagus has no ___and, for this reason, does not heal as readily after injury
serosal layer
What is the gold standard for diagnosing GERD?
Ambulatory 24-Hour pH Monitoring=
Esophageal achalasia is a primary esophageal motility disorder characterized by ___
the absence of esophageal peristalsis.
What is the primary treatment modality for esophageal achalasia?
laparoscopic Heller myotomy and partial fundoplication
What has Radiologic evidence of tertiary contractions (corkscrew esophagus)?
Esophageal spasm
___ is the only test that distinguishes diffuse esophageal spasm from other primary esophageal motor disorders.
Esophageal manometry
what is the most common symptom of nutcrackers esophagus?
Chest pain
what is characteristic of nutcrackers esophagus?
Normal peristalsis but high amplitude and duration
___are the most common benign tumors of the esophagus.
Esophageal leiomyomas
On barium swallow, leiomyomas appear as _____
a smooth filling defect within the esophageal lumen
The treatment of choice for symptomatic esophageal leiomyomas is
laproscopic enucleation.
What is boerhaave syndrome?
Spontaneous esophageal perforation
___produces “liquefaction necrosis,” ___produce a “coagulation necrosis”
Strong alkali. Acids
Aorta hiatus lies at ___
T12
Esophageal hiatus lies at ___
T10
Pleuroperitoneal Hernia is ___ hernia
Foramen of Bochdalek
Parasternal or Retrosternal is ___ hernia
Foramen of Morgagni
What is gas stoppage sign?
visceral sensation due to reflex ileus induced by an inflammatory lesion walled off from the free peritoneal cavity, as in retrocecal or retroileal appendicitis. Feeling of fullness that would be relieved by BM
The absence of bile in the vomitus is a feature of ___
pyloric stenosis.
What is obstipation?
the absence of passage of both stool and flatus
A raised ___level corroborates a clinical diagnosis of acute pancreatitis.
serum amylase
Thumbprint” impressions on the colonic wall are noted in about half of patients with ___
ischemic colitis
Which ulcer has Epigastric pain relieved by food or antacids?
Duodenal
How do you treat ulcers surgically?
Vagotomy
What is Billroth I resection versues Billroth II resection?
In 1, he proximal remnant may be reanastomosed to the duodenum. In 2, to the side of the proximal jejunum
What is SUBTOTAL GASTRECTOMY?
resection of two thirds to three fourths of the distal stomach.
Most gastric ulcers are located ___
lesser curvature (most within 6 cm of pyloris)
What are type 1 gastric ulcers?
Most common. No evidence of duodenal ulcers.
What are type 2 gastric ulcers?
Often with duodenal ulcers. Very close to pyloris. Low association with cancer.
What are type 3 gastric ulcers?
Associated with NSAIDs
Hematemesis of either bright-red or dark blood indicates that the source is ___
proximal to the ligament of Treitz.
Coffee-ground vomitus is due to ___
vomiting of blood that has been in the stomach long enough for gastric acid to convert hemoglobin to methemoglobin.
Most patients with melena (passage of black or tarry stools) are bleeding from ___
the upper gastrointestinal tract
What is Hematochezia?
passage of bright-red blood from the rectum.
What is early symptom of gastric cancer?
vague postprandial abdominal heaviness that the patient does not identify as a pain.
What is diagnostic triad for volvus?
1) vomiting followed by retching and then inability to vomit, (2) epi-gastric distention, and (3) inability to pass a nasogastric tube.
___ is a relative contraindication for partial hepatectomy
cirrhosis
what is the most common cause of prehepatic jaundice?
Hemolysis
what is elevated in acute pancreatitis?
Amylase
what is a pancreatic psuedocyst?
Pancreatic pseudocysts are encapsulated collections of fluid with high enzyme concentrations that arise from the pancreas. They are usually located either within or adjacent to the pancreas in the lesser sac. Don’t have an epithelial lining (thus called pseudo)
what is diagnostic study of choice for pancreatic psudeocyst?
CT
Where does Primary Adenocarcinoma of small bowel usually occur?
in proximal jeunum
What are contributing factors for toxic megacolon?
inflammation involving the muscular coats, hypokalemia, opioid use, anticholinergic use, or barium enema examination.
How do you diagnose toxic megacolon?
Plain abdominal x ray or barium enema
What is Charots triad and what does it help diagnose?
ascending cholangitis fever, RUQ pain, and jaundice
What is Reynolds pentad?
hypotension and mental status changes in addition to charots triad
What is child turcotte pugh classification used for?
Liver failure
what does ransons criteria tell you about?
Severity of pancreatitis
what is courvoisier’s sign?
Palpable non rtender gallbladder in patient with jaundice. Pancreatic carcinoma
what helps distinguish between small nad large bowel obstructions?
Large have haustral markings
what is most common site for volvus?
Sigmoid colon
what is most common lung cancer seen in non smokers?
Adenocarcinoma
lead pipe deformity= ___
ulcerative colitis
bird beak deformity= ___
achalasia
most common cause of incisional hernia?
Deep wound infections
what is triad for reactive arthritis?
Urethritis, arthritis, and conjunctivitis
what is the primary source for metastatic bone disease in men?
Prostate cancer
___released during anesthesia and surgical stress, promotes ___.
ADH, water conservation by the kidneys
Barrats esophagus is the Replacement of normal ___ with ___.
squamous epithelium. intestinal columnar epithelium.
Barrets predisposes to development of ___
adenocarcinoma
What is Achalasia?
degeneration of the intramural myenteric plexus neurons by an unknown etiology
What does Esophageal manometry with achalasia show?
elevated LES pressure, incomplete relaxation of LES with swallowing.
Mallory wise tear is Post retching, post emesis longitudinal mucosal tear of the ____ near the ___
stomach near the GE junction.
Of Mallory wise tears, half are caused by ___ and the other half ___
alcoholics and hiatal hernias
balloon devices are only used in ___ which are ___
esophageal varices which are painless
what will stop a majority of the bleeding with Mallory weise tears?
Water lavage
what is Boerhaave’s Syndrome?
Postemetic esophageal rupture from increased intraluminal pressure.
Esophagus doesn’t have ___ so it is more ___
serosa so is more likely to perforate
Where is boerhaave’s syndrome most commonly seen?
posterolateral aspect of the esophagus above the GE junction.
What are symptoms of borhaave’s?
pain postemesis which may radiate to the back. May see L pneumothorax, L pleural effusion, fever, tachypnea, widened mediastinum on CXR, Hammans sign
What is hammans sign?
mediastinal crunch- heart beating against air filled tissues
How do you treat boerhaave’s?
surgery w/i 24 hours to drain the mediastinum, close the perf, and place a patch. IVabx
What is calots node?
part of Calots triangle. Important site of metastasis.
Need to be aware of the ___as it is often mistaken for the ___because of its proximity to Calot’s triangle
R hepatic artery. cystic artery
What is calot’s triangle?
Cystic duct, Common hepatic duct and Cystic artery.
What are Ducts of Luschka?
small ducts which drain bile directly into GB from liver
What is bile?
mix of cholesterol, lecithin, bile acids and bilirubin.
Where is bile reabsorbed?
ileum
What is Cholecystokinin (CCK)?
It stimulates GB to empty, opens ampulla of vater, relaxes sphincter of Oddi, slows gastric emptying.
What makes cholecystokinin?
duodenal mucosal cells
At what level do you see jaundice?
Billiruben over 2.5
Where is jaundice first seen?
Under tongue
What are symptoms of obstructive jaundice?
jaundice, dark urine, clay colored stools, itching (bile salts attempting to be excreted through skin), loss of appetite and nausea.
What makes pigmented stones more common?
seen more often in cirrhosis and hemolysis
What is Choledocholithiasis?
gallstones in CBD
What is Cholangitis?
inf of biliary tract
What are symptoms of cholangitis?
Charcot’s Triangle
What is charcot’s triangle?
Jaundice, Fever, Chills (“shivering”)
What do you add to charcot’s triangle to make pentad?
Confusion and Hypotension
What is biliary obstruction?
Intrahepatic usually from stasis as bile excretion
What is extrahepatic obstruction?
occurs within the ducts or secondary to external compression. Gallstones are most common
What does extrahepatic obstruction cause?
eventual conjugated hyperbilirubinemia
What does primary sclerosing cholangitis cause?
Intrahepatic obstruction
What is extraductal obstruction?
compression of ducts
What is courvosier sign?
Palpable gallbladder
What are labs for extrahepatic and intrahepatic?
bilirubin, alk phos (extrahep increased 3x beyond normal, intrahep just elevated)
What is ERCP?
endoscopic Retrograde ChoangioPancreatography
What is MRCP?
Magnetic resonance cholangiopancreatography is a noninvasive way to visualize the hepatobiliary tree. It takes advantage of the fact that fluid (eg, that found in the biliary tree) is hyperintense on T2-weighted images
What incision is used for lap chole?
Kochlar incision
What is clipped in lap chole?
Cystic artery and cystic duct
What are some Indications for a cholangiogram in lap chole procedure?
Jaundice, Pancreatitis, Dilated cystic duct, Ductal Injury, Many small stones
What is elevated with pancreatitis?
Elevated amylase/lipase
What causes pacreatitis?
I GET SMASHED: Idiopathic, Gallstones, EtOH, Trauma, Scorpion bite (!!), Mumps, Autoimmune, Steroids, Hyperlipidemia, ERCP, Drugs (HCTZ)
What is a pancreatic psuedocyst?
localized fluid collections that are rich in amylase and other pancreatic enzymes, that have a nonepithelialized wall consisting of fibrous and granulation tissue, and that usually appear several weeks after the onset of pancreatitis.
How do you treat pancreatic psuedocysts?
Need 6 weeks to mature from a phlegmon to gain a wall thick enough to manipulate. Need to watch for 6 weeks, about 50% will spontaneously resolve. In large pseudocysts (>6cm open operative drain). May then need pancreatic cyst-jejunostomy roux en y, pancreatic cyst-gastrostomy all with a CCY in all operations.
What are symptoms of pancreatic psuedocyst?
continuous abdominal pain following pancreatitis, may see jaundice.
What is Roux-En-Y?
Limb of jejunum that is used to drain bile, the pancreas or the stomach.
What is test of choice and can determine resectability of a adenocarcinoma of pancreas?
endoscopic ultrasound
What do all diagnostic modalities do with adenocarcinoma of pancreas?
Underestimate extent of disease
What is Whipple?
Pancreaticoduodenectomy
What is symptom of pancreatic fistula?
Sterrorhea bc there are no enzymes to break down fats
What is main cause of bowel obstruction?
Adhesions
What is a gallstone ileus?
large gallstone eats though gb and into duodenum where it travels and eventually gets stuck
How is SBO different than ileus?
ileus is lack of peristalsis
What is the most common cause of small bowel ileus?
Post surgical
Where is most common area for diverticultis?
Sigmoid colon
What is false diverticulum?
does not contain all three layers, missing the outer serosal layer
How do you treat diverticulitis?
initially abx to cover E.coli and bacteroides = Cipro+Flagyl. Clear liquids. If present again, similar treatment until healthy, then resection.
Where do upper GI bleeds occur?
Proximal to ligament of treitz
Right colon cancer causes ___ whereas left colon cancer causes ___
right= anemia. Left=obstruction
What type of Volvulus is most common?
Sigmoid
Describe CT for colonic volvus.
Beak sign
How do you treat colonic volvus?
Need to resect because there is a high likelihood of another recurrence.
How do you treat cecal volvus?
CANNOT decompress. Can resect with an anastomosis or perform a cecopexy in which the cecum is sutured down, or the appendix is removed and the associated scarring will tie down the cecum in place.
Who gets colonic volvus versus cecal volvus?
Colonic= usully older. Cecal= middl aged
What is The most common type of hernia in both men and women?
Inguinal hernia
__ inguinal hernias are usually large, located often in the scrotum and can sometimes be asociated with a hydrocele
indirect
what is an indirect hernia?
always congenital! appear in young children, often Inguinal. Hernia is lateral to epigastric vessel. Seen in women (because of the wider pelvis). Passes through inguinal ring
what is a direct hernia?
acquired from muscle weakening. Inguinal is most common. Hernia is medial to epigastric vessel. Pass through Hesselbach’s triangle.
What is hesselbach’s triangle?
: inferior epigastric vessels, inguinal ligaments and rectus abdominis.
What are borders for femoral hernia?
boundaries include the superior inguinal ligament, coopers ligament with the vein being the lateral border (NAVHernia going lat-med).
Who gets femoral hernias more?
Women
Which do women get more: femoral or inguinal?
Inguinal
A bulge felt below the ___is consistent with a femoral hernia
inguinal ligament
__ is the most common cancer in the intestinal tract
Adenocarcinoma
where is adenocarcinoma most commonly seen?
ileus and in the appendix.
Where is most common sites for mets for adenocarcinoma of intestinal tract?
Liver
What are the three symptoms of adenocarcinoma of intestinal tract?
FDR. Flushing, Diarrhea, Respiratory
Antrum/Duodenal Ulcers that perforate anteriorly → cause ___
air in the abdomen
Antrum/Duodenal Ulcers that perforate posteriorly → cause ___
bleeding (close to vessels)
What is Bilroth I?
the pylorus is removed and the proximal stomach is anastomosed directly to the duodenum
What is Bilroth II?
Indicated in refractory PUD. The greater curvature of the stomach is connected to the first part of the jejunum in a side-to-side manner.
Where do gastrinomas usually occur?
duodenum or pancreas
What is Esophageal Atresia?
a congenitally interrupted esophagus.
What are symptoms of esophageal atresia en utero?
Polyhydraminos
What is Omphalocele?
an anterior abdominal wall defect at the base of the umbilical cord, with herniation of the abdominal contents.
What is Gastroschisis?
Most cases of gastroschisis involve the intestine and other abdominal organs herniating through an opening in the abdominal wall and spilling out into the amniotic fluid around the fetus.
Where are most gastroschisis found?
To right of umbilicus
How is gastroschisis different than omphalocele?
Differentiated from an omphalocele in that is does not have a peritoneum covering.
How do you treat gastroschisis?
Cillenti bag placed over the herniated contents.This is a spring-loaded silastic (silicone plastic) pouch which slowly and gently pushed back down into the abdomen
Describe Chromic sutures.
Absorbable in about 2 weeks
Describe vicryl sutures
Absorbable in appx one month. The longer time frame allows for the tissue surrounding to heal naturally by the time the sutures dissolve.
Describe silk sutures
Nonabsorbable. Not used in sites of active infection or possible infection as they can frequently cause stitch granuloma.
Describe nylon sutures
Nonabsorbable. Used for superficial lacerations- ie face, fingers, etc.
Usually inner serosa=___ sutures, then outer=___ sutures
inner=chromic/vicryl, then outer- silk/nylon
When do you see toxic megacolon?
in UC of Cdiff colitis
What is most vulnerable to perforation with toxic megacolon?
Cecum
How do you treat toxic megacolon?
Antibiotics and if unresponsive, total colectomy
What is wilms tumor?
a tumor affecting a kidney (unilateral) seen primarily in children
What are symptoms of wilms tumor?
dull back ache,ascities, F/N/V, hematuria usually present.
How do you diagnose wilms tumor?
Lump felt on PE. Biopsy is typically NOT done as it risks a spread
What is in the epidermis?
mostly keratinocytes: T-B stratum, basale, sinous, granular, corneum
What is in the dermis?
fibroblasts, collagen and elastin, blood, lymph, nerves
What is in the Sub Q?
fat
How much fluids do you give?
1st 10kg=100ml/kg, next 10=50ml/kg, rest=20ml/kg
Any volume excess is typically in ____
the 3rd space seen in PO day 3 as pulmonary edema (s3 gallop)
Most common fevers in first week are
1)Inf (40%) 2) UTI (30%) 3) Pneumonia (12%)
When does wound infection as cuase of fever usually occur?
POD5
What causes necrotizing fasciitis?
Clostridium perfringens, Group A Hemolytic Strep
When do you most often see malignant hyperthermia?
in inhaled anesthetics
How do you treat malignant hyperthermia?
Dantrolene (Dantrum)
When should you use Transfusions in attempts to raise hematocrit levels or to replace after acute blood loss?
In postoperative patients Hgb<8 or Hgb<10 but symptomatic.
Portal vein is formed by ___
splenic and SMveins
IMV drains into ___and the left gastic drains into___. ___supplies the liver
the splenic vein. the portal vein. The portal vein divided into R and L
What causes prehepatic hypertension?
splenic thrombosis (avm of spleen)
What causes intrahepatic hypertension?
presinusoidal (viral hepatitis, primary biliary cirrhosis) sinusidal (alcoholic cirrhosis) post sinusoidal (veno-occlusive disease)
What causes extrahepatic hypertension?
budd chiari, pericarditis, tricuspid insufficiency
What Accounts for ⅓ of all cirrhosis deaths and mostly likely cause of upper GI bleed in cirrhotic patients?
Variceal Bleed
Where is most common location of undescended testicle?
Inguinal canal
What is most common renal mass in infancy?
Congenital mesoblastic nephroma
What is the most common renal tumor of childhood?
Wilms tumor
What is Ogilvie’s syndrome?
Acute massive dilation of cecum and ascending and transverse colon without organic obstruction
What is the most common stologic type of bladder cancer?
Transitional cell carcinoma
How do you best treat carcinoma in situ of the bladder?
Immunotherapy with intravesical bacillius calmee Guerin
What is most common cause of male infertility?
Varicocele
What is the most common non bacterial cause of pneumonia in transplant patient?
CMV
__ is leukocyte sharing between graft and the recipient so that the graft becomes a genetic composite of both the donor and the recipient
chimerism
what is the most common disease requiring a liver transplant?
Hepatitis C
what is cystic hygroma?
Congenital malformation with a predilection for the neck. Benign lesion that usually presents as soft mass in lateral neck
what is type A aortic dissection versus type B?
type A begins in ascending aorta and may continue to descending. Type B only occurs in descending
what are the most common causes of aortic stenosis?
Congenital abnromalites and calcific (degenerative) disease
what is surgical treatment for UC?
Total colectomy with ilioanal pouch anestomosis
what is chvostek’s sign?
Spasm of facial muscles caused by tapping of facial nerve trunk
what is trousseaus sign?
Carpal spasm elicited by occlusion of brachial artery for 3 mins with blood pressure cuff
what od chvosteks sign and trousseaus sign indicate?
Hypocalcemia
what are the surgical correctable causes of hypertension?
1)renovascular HTN 2) pheochromocytoma 3) cushings 4)primary hyperaldosteronism 5) coartation of aorta 6) unilateral renal parenchymal disease
what is the most commonly injured facial nerve branch during parotidectomy?
Ramus marginalis mandibularis
what are the micororganisms for artherosclerosis?
Chlamydia pneumonia, h pylori, strep, and bacillisu typhosus
what is average expansion rate for abdominal aorta?
0.4cm/yr
how does heparin work?
Binds to antithrombibn III making it more active
what has the highest potassium concentration?
Saliva
basic caloric expenditure equals ____
25 kilocalories/kg/day with at least 1 g protein/kg/day
maximal glucose infusion rates in parenteral formulas should not exceed ___
5 mg/kg/min
refeeding syndrome causes decreased ___ levels
serum phosphorus, potassium, calcium, and magnesium
___ is most common amino acid found in muscle and plasma
glutamine
what is formula for cardiac output?
HR X SV
what is normal cardiac output?
5-6 L/min
what is kehr’s sign?
Concurrent left upper quadrant and left shoulder pain. Indicates diaphragmatic irritation from a ruptured spleen or subdiaphragmatic abcess
rebound tenderness implies ___
peritoneal inflammation
what are clinical indicators for baillar skull facture?
Periorbital ecchymosis and battles sign (mastoid ecchymosis)
what defines a penetrating neck wound?
Violation of the platysma
what is the most common manifestation of blunt myocardial injury?
Arrhythmia
what is becks triad?
Hypotension, distended neck veins, and muffled heart sounds
what supplies blood flow to liver?
Hepatic artery (30%) and portal vein (70%)
what is pringles maneuver?
Used to reduce liver hemmorage. Manual occlusion of hepatoduodenal ligament to interrupt blood flow to liver
splenectomy significantly decreases ___
igM
90% of trauma fatalitesresulting from pelvic fractures are the result of ___
venus bleeding and bone oozing
posterior knee dislocations are associated with ___ injuries and are indications of ___
popliteal artery injuries. Angiography
___ indicate splenic vein thrombosis and are indication for ___
isolated gastric varices with hypersplenism. Splenectomy
what is curshings ulcer?
Stress ulcer found in critically ill patients with CNS injury. Typically single and deep and have tendency to perforate.
What is curlings ulcer?
Stress ulcer found in critically ill patient with burn injuries
What is a marginal ulcer?
Ulcer found near the margin of gastroenteric anastomsosi. Usually on small bowel side.