Flashcards in TrueLearn All Deck (362)
What is nodular lymphoid hyperplasia?
numerous polyps in the small and large intestine associated with immunosuppression (tumors, IgA deficiency, HIV)
colorectal- not associated with malignancy
small intestine - associated w increased incidence of lymphoma
What are guidelines for placing an ICP monitor w severe brain injury?
- GCS = or <8 who EITHER
1. abnormal CT OR
2. normal CT with >2 of following: age >40yrs, any hx of hypotension, abnormal motor posturing
equation for CPP
CPP = MAP - ICP
Name 4 etiologies of chylous ascites
1. Malignancy- end stage pancreatic cancer
2. Congenital Lymphangiectasia
3. Thoracic duct obstruction
4. Lymph peritoneal fistula
what is the most common causative organism of necrotizing fasciitis?
group A strep
What is the indication for a SLN bx in malignant melanoma?
primary melanoma = or >1mmm thickness and clinically negative nodes (for those 0.75 to 1.0mm, consider SLN in younger pts, evidence of ulceration or LVI, extensive dermal regression, or 1 or >mitosis/mm2)
tumor lysis syndrome occurs most often in what 2 cancers?
1. Acute leukemia with high WBC counts
2. High grade lymphomas
what are 3 patient risk factors for tumor lysis syndrome?
1. Bulky tumors sensitive to chemo
2. Elevated LDH
3. Renal insufficiency
what is the most common surgical option for SMA syndrome?
When repairing umbilical hernias, for what size defect do you place a mesh?
MOA of succinylcholine
nicotinic acetylcholine receptor agonist -> depolarization of the motor end plate
what are 5 side effects of succinylcholine?
2. Muscle pain
3. Transient ocular HTN
5. Malignant hyperthermia
what are 3 contraindications to use of succinylcholine?
1. Neuromuscular disease
2. Closed head injury
treatment of malignant hyperthermia?
what are the indications for elective repair of a AAA?
>5.5cm or growing >0.5cm per 6 months
what is the most common indication for parotidectomy?
what is the problem with an ascending end colostomy?
leaves an end of the colon undrained leading to septic complications or perforation
serious side effect of neostigmine
Five Types of choledochal cysts
Type I: fusiform/saccular dilation of some or all extrahepatic ducts
Type II: isolated diverticulum protruding from the wall of the CBD
Type III: arises from intraduodenal portion of CBD
Type IV: multiple dilatations of either both the intra and extrahepatic ducts (A) or only the extrahepatic ducts (B)
Type V: Caroli's disease: multiple dilatations limited to the intrahepatic bile ducts
treatment of type I choledochal cyst?
excision with roux-Y hepaticojejunostomy
treatment of type III choledochal cyst?
marsupialization or excision of the cyst
treatment of type II choledochal cyst?
excision and primary closure of the choledochotomy
what is thrombotic thrombocytopenia purpura? (classic pentad)
aka moschcowitz syndrome, widespread thrombosis of arterioles, pentad:
1. Thrombocytopenic purpura
2. Neurologic manifestations due to microvascular disease in the brain
3. Kidney injury or hematuria
4. Hemolytic anemia
what is immune thrombocytopenia purpura
auto antibodies produced against platelets with resultant platelet destruction and thrombocytopenia
what is felty syndrome?
triad of: rheumatoid arthritis, neutropenia, splenomegaly
what is wiskott-aldrich syndrome? (triad)
hereditary X linked disease
1. Low platelet counts
2. Combined B and T cell deficiency
what is the composition of lactose?
glucose and galactose
what is the composition of sucrose?
glucose and fructose
what is the composition of maltose?
glucose + glucose