Gastrointestinal/ Renal/ Genitourinary Flashcards
Tx Oral thrush
Fluconazole PO
Mouth
Large linear superifical ulcerations
Intranuclear and intracytoplasmic inclusions on biopsy
TX
Cytomegalovirus
Tx: Ganciclovir IV
Esophagitis caused by medications
Tetracyclines
Bisphosphonates
NSAIDs
Potassium chloride
Cork screw shaped esophagus
Dx
Tx
Diffuse (distal) Esophageal spasm
Esophageal manometry (most accurate) - High amplitude simultaneous contractions in greater than 20% of swallows
Triggered by hot or cold liquids
Relieved by nitroglycerin
Tx: CCB
Tricyclic antidepressants
Nitrates
Tx Achalasia
Short term:
- Nitrates
- CCB
- Botox
Long term:
- Penumatic balloon dilation or surgery (heller) myotomy
Tx Zenker diverticulum
Myotomy of the cricopharyngeus
Narrowing of esophagus with an irregular border protruding into the lumen
Esophageal cancer
Tx GERD
Lifestyle modifications
- avoid alcohol, chocolate and coffee
Mild: Antiacids
Chronic/ frequent:
- H2 receptor antagonists (cimetidine, ranitidine
- PPI (omeprazole, lansoprazole)
Severe/ erosive:
- PPI (first)
- If refractory: Nissen surgery
Tx Hiatal hernia
If paraesophageal hernia surgery gastropexy to prevent gastric volvulus
Types of Chronic gastritis
Type A (10%)
- Fundus
- Autoantibodies to parietal cells
- causes pernicious anemia
- increased risk of gastric adenocarcinoma and carcinoid tumors
Type B (90%)
- Antrum
- NSAIDS/ H.pylori
- Increased risk peptic ulcer disease
Low hemoglobin
High MCV
Macrocytic Megaloblastic anemia
Pernicious anemia
Disease where large, immature nucleated cells (megaloblasts) circulate in the blood and do not function as blood cells
Disease caused by impaired uptake of Vit B12 due to lack of intrinsic factor in gastric mucosa
H pylori test
First: stool antigen
Serology: cant determine if active disease
Urea breath test: PPI cause false negative results
Ab stay + even when the infection is cleared
Use urea breath test or repeat stool antigen as a test of cure
H pylori tx
Triple therapy
Amoxicillin
Clarithromycin
Omeprazole
Pencillin allergy= metronidazole
Krukenberg tumor
Gastric adenocarcinoma that metastasizes to ovary
Virchow node
enlarged left supraclavicular LN
Gastric cancer
Sister Mary Joseph node
Palpable lymph node near the umbilicus
Gastric cancer
1) Posterior ulcer erodes into
2) Ulcer on lesser curvature of stomach
1) Gastroduodenal artery
2) Left gastric artery
What to give patients with peptic ulcer disease who require NSAIDS for arthritis
Misoprostol
Bloody diarrhea (4)
Campylobacter
Salmonella
Shigella
Ecoli (EHEC)
Watery diarrhea (6)
Vibrio cholerae Rotavirus Ecoli (ETEC) Cryptosporidium Giardia Norovirus
Tx Campylobacter
Supportive tx
Fluoroquinolones (ciprofloxacin) or
Azithromycin
Tx Clostridium difficile
PO metronidazole (mild)
PO vancomycin (moderate to severe)
Diarrhea
Egg shell calcifications
- T
Echinococcus granulosus
Contact w/ dogs, host for tape work
Causes simple liver cysts
- Albendazole
Arthritis
Lymphadenopathy
Cardiac issues
PAS positive granules on lamina propria on biopsy
Whipple disease
Diarrhea
Confusion
Rash
Pellagra
Deficiency of Vit B3 (niacin)
Foul smelling, bulky stools
Flatus
Bloating
- Examples (4)
Malabsorption/ maldigestion
Celiac disease
Whipple
Tropical sprue
Crohns
Carcinoid tumor found where
Ileum or appendix
Flushing Diarrhea Abdominal cramps Wheezing Right sided cardiac valvular lesions
Measure what
Tx
Can develop
Due to MOA
Carcinoid syndrome
Measure 5-HIAA
Tx: Octreotide
Surgical resection
Develop niacin deficiency because tryptophan is metabolized into serotonin
Gallstone ileus
Fistula between gallbladder and GI tract —> stone enters GI lumen —> obstructs at ileocecal valve
Air in biliary tree (pneumobilia)
Form of small bowel obstruction
Resulting from the passage of a large stone >2.5 cm into the bowel through cholecystoduodenal fistula
Severe abdominal pain out of proportion to exam
Dx
Mesenteric ischemia
Dx: Mesenteric/ CT angiography
Ischemia of bowels after cardiac catheterization due to
Cholesterol embolism
Diverticulitis tx
NPO NG tube Broad spectrum Ab - Metronidazole - Fluroquinolone or third generation cephalosporin
Diver’s
Mask
Covers
Face
Streptococcus bovis
Cancer in butt
Ischemic colitis dx
Insufficent blood supply
Watershed area
Crampy abdominal pain followed by bloody diarrhea
CT scan w/ contrast
- thickened bowel wall, atherosclerosis
Crohns disease
- Location
- Features (4)
- Tx (2)
Any portion GI tract Skip lesions Fistulas Watery diarrhea Creeping fat
Tx: 5-ASA agents
- Sulfasalazine
- Mesalamine
Corticosteriods
- Increased risk colon cancer
UC
- Location
- Features (2)
- Tx (2)
Rectum
Bloody diarrhea
Toxic megacolon
Tx: 5-ASA agents
- Sulfasalazine
- Mesalamine
TNF-alpha inhibitors
- infliximab
- adalimumab
- golimbumab
Corticosteriods
- Increased risk colon cancer
Hesselbach triangle
Area bound by
Inguinal ligament (inferior) Inferior epigastric artery (lateral) Rectus abdominis (medial)
Hernia lateral to inferior epigastric vessel
Indirect hernia
Results from congenital patent processus vaginalis
Herniation medial to epigastric vessels
Direct hernia
Mechanical breakdown in transversalis fascia from age
Hernia Mnemonic
Directly to the middle (medial)
Indirect (LIE) lateral to inferior epigatsric vessel
Black gallstones
Hemolysis
Sickle cell
Brown gallstones
Infection
Cholecystitis
Choledocholithiasis
Cholangitis
Cholecystitis
- inflammation of GB due to stone in cystic duct
- RUQ pain, fever, murphy sign
Choledocholithiasis
- stone in common bile duct
- Jaundice, RUQ pain, afebrile
- Dilated CBD
- MRCP or ERCP
- Elevated Alk Phos and direct bilirubin
Cholangitis
- infection of CBD due to stone
- RUQ pain, fever, jaundice, reynolds pentad (shock + mental status changes)
- Elevated Alk Phos and direct bilirubin
RUQ pain following opiate administration
Sphincter of Oddi dysfunction
HBsAg
HBsAb
HBcAg
HBcAb
HBeAg
HBsAg
- Presence of virus
HBsAb
- antibody to HBsAg (immunity)
HBcAg
HBcAb
- Antibody to HBcAg
- prior or current infection (no vaccine)
HBeAg
- Transmissibility
+ ANA
+ Anti-smooth Ab
Elevated IgG
P-ANCA
Autoimmune hepatitis
HBV tx
Tenofovir
Entecavir
Complication of cirrhosis and ascites
- Lab
- Tx
- Prophylaxis
Spontaneous bacterial peritonitis
> 250 PMNs/mL in ascitic fluid
Tx: third generation cpehalosporin
IV albumin prophylaxis w/ fluoroquinolne to prevent reoccurance
Ascites and Serum ascites albumin gradient (SAAG)
SAAG= serum albumin - ascites albumin
SAAG > 1.1
- Related to portal HTN
Presinusoidal: splenic or portal vein thrombosis, schistosomiasis
Sinusoidal: Cirrhosis
Postsinusoidal: Right heart failure, constrictive pericarditis, Budd-Chiari syndrome
SAAG< 1.1
- Not related to portal HTN
Nephrotic syndrome
TB
Malignancy w/ peritoneal carcinomatosis (ovarian cancer)
[Sarcoidosis, SLE]
Associated with UC
Primary sclerosing cholangitis
P-ANCA
“Onion skin” bile duct
Increase IgM
Primary sclerosing cholangitis associated with
Risk for
UC
Increased risk for cholangiocarcionoma
Progressive jaundice Pruritus Fatigue Increase Alk phos Increase bilirubin
P-ANCA
Hx UC
- Name
- MOA
- Seen on imaging (2)
- Increase
- Tx
- Affects who
Primary sclerosing cholangitis
Idiopathic disorder characterized by progressive inflammation and fibrosis accompanied by strictures of extrahepatic and intrahepatic bile ducts
MRCP/ERCP shows multiple bile duct strictures and dilations (beading)
“Onion skin” bile duct
Increase IgM
Tx ERCP w/ dilation
Young men
Progressive jaundice
Pruritus
Fat soluble vitamin deficiencies (A, D, E, K)
Increase Alk Phos
Increased Bilirubin
+ Anti-mitochondrial Ab
Increased cholesterol
- Name
- MOA
- Affects who
- Tx (3)
Primary Biliary cholangitis
Autoimmune disorder characterized by destruction of intrahepatic bile ducts (lobular ducts)
[Not common bile duct]
Middle aged women
Tx: Ursodeoxycholic acid
(slow progression)
Cholesyramine (pruritus)
Liver transplant
Elevated alpha feto protein
Hepatocellular carcinoma
Yolk Sac tumor
Liver mass
Oral contraceptives
Hepatic adenomas
Benign
Abdominal pain DM Hypogonadism Cirrhosis Bronze skin Hepatomegaly
- Name
- Labs (3)
- Tx (2)
- Susceptible (3)
Hemochromatosis
Elevated iron
Elevated ferritin
Decreased transferrin
Tx: phelbotomy
Deforxamine, deferiprone or deferasiroxcan can help maintain
Increased suseptibility to
- Vibrio vulnificus
- Listeria monocytogenes
- Yersinia enterocolitica
Hemochromatosis
Very
Yellow
Legs
Cirrhosis
Tremor
Psychosis/ Anxiety
Jaundice
Hepatomegaly
Choreiform movements
Rigidity
- Name
- Inheritance
- Test (2)
- Lab
- Tx
- Avoid
Wilson disease
AR
Slit lamp exam
Decreased ceruloplasmin
Most accurate test: 24 hour urinary copper excretion after given penicillamine
Tx: Penicillamine or trientine
Avoid: Shellfish, liver, legumes and zinc
Elevated serum insulin
C peptide elevated
Insulinoma
Watery diarrhea
Dehydration
Muscle weakness
Flushing
Low stomach acid
VIPoma
CA 19-9
Pancreatic cancer
Hx Cirrhosis
Fever
Mental status changes
Spontaneous bacterial peritonitis
7 day old taking oral formula
Low temp Lethargic Cyanotic Abdominal distension Absent bowel sounds
Red blood in stool
NG tube= bilious fluid
- Name
- Risks (2)
Necrotizing enterocolitis
Risks: very low birth weight, enteral feeding
AST and ALT >25 x upper limit
Toxin induced (acetaminophen)
Ischemic
Viral hepatitis
Recurrent rectal pain
5 minutes
Unrelated to defecation
No blood
- Name
- MOA
- Tx
Proctalgai fugax
Spastic contraction of the anal sphincter
Pudendal nerve compression
Nitroglycerin cream
Gas in gallbladder wall
- Name
- Risk factors (3)
- Caused by (2)
- Tx (2)
Emphysematous cholecystitis
Risk factor DM, vascular compromise, immunosuppression
Clostridium
Ecoli
Klebsiella
Emergery surgery
Piperacillin taxobactam
Meckel diverticulum test
Technetium-99m pertechnetate scan
Detects ectopic gastric tissue
UC tx
< 4 watery BM
Initial management is with 5-aminosalicylic acid (5-ASA)
- mesalamine
- sulfasalzine
- balsalazide
Mesalamine enemas
> 6 watery BM
- Severe: TNF-alpha inhibitors (infliximab, adalimumab, golimbumab)
Food stuck in throat
Vomiting water
Frequent heart burn
- PPI dont help
Eosinophilic esophagitis
Leads to stricture formation
Ascites protein characteristics
Total Protein <2.5
- Cirrhosis
- Nephrotic
Total protein > 2.5
- CHF
- Constrictive pericarditis
- TB
- Budd-Chiari
SAAB <1.1
- tb, pancreatic ascites
- Sarcoidosis, SLE, cancer
- nephrotic syndrome
SAAG >= 1.1 - portal htn cardiac ascites Cirrhosis Budd chiari
Distended abdomen with shifting dullness
Due to what?
Paracentesis:
albumin 2.5
Blood:
Albumin 3.8
MOA
SAAG= serum- ascites albumin
3.8-2.5= 1.3
Indicated portal hypertension
- cardiac ascites
- cirrhosis
- Budd-chiari
Which indicates an increased hydrostatic pressure within hepatic capillary beds
Ascites with increased capillary permeability
Malignant ascites
SAAG < 1.1
Non-portal HTN
Infant
Painless bloody stools
1 month old
Reflux/ spit up
Eczema
Food protein induced allergic proctocolitis
Remove all dairy and soy
Abdominal bloating
Steatorhhea
Macrocytic anemia
Hx Gastric bypass
- What is it
- Caused by
- Results in
- Dx
- Tx
Small intestinal bacteral overgrowth (SIBO)
Gastric bypass results in a blind loop of intestine that allows for excessive bacterial growth
Nutritional deficiencies
Dx: Carbohydrate breath test measures the hydrogen by intestinal flora
Correction of abnormality Empiric ab (rifaximin)
RUQ pain
Gaseous distension of small and large bowels without air fluid levels
Gallbladder is distended with no gallstones
Small amount of pericholecystic fluid
Acalculous cholecystitis
Due to gallbladder stasis, hypoperfusion or infection (CMV)
Antibiotics and percutaneous cholecystostomy
Luminal irregularities with mild focal dilations within both intrahepatic and extrahepatic biliary ducts
High elevated Alk phos
Increased bilirubin
Elevated Gamma glutamyl transpeptidase
Primary sclerosing cholangitis
90% also have inflammatory bowel disease w/ UC more common than crohns
Get colonoscopy to rule out IBD
Causes of subphrenic abscess
Perforated ulcer
Appendicitis
Abdominal surgery
What should be check on ascites
Fluid color
Total protein count
SAAG
Cell count and differential to rule out spontaneous bacterial peritonitis
Young man
Vomiting
Now retrosternal pain
Fever
Crepitus
Esophageal perforation
Crepitus & Fever are key
[ Aortic dissection doesnt have these]
Ectopic pregnancy on doppler
Increased doppler flow (Ring of fire) around ectopic pregnancy
Develops GI hemorrhage days after being admitted to ICU
Stress induced ulcer
Risk factors shock and sepsis
Occult bleeding
Only found on labs (not visible)
Itching
Fatigue
Hepatomegaly
No scleral icterus or jaundice
Elevated cholesterol
Elevated bilirubin
Elevated Alk phos
Normal common bile duct
Primary biliary cholangitis
Check anti-mitochondrial ab
32 y.o
Intense, midline chest pain and diaphoresis
Recurrent vomiting
Alcohol
Cocaine
Fever
BP 100/60
Dilated pupils
Diminished breath sounds on left
Widened mediastinum
Moderate pleural effusion on left
Pleural fluid= yellow exudate with high amylase
Esophageal perforation
Refeeding syndrome
Hypophosphatemia
Hypokalemia
Weakness
Arrhythmias
Risk factors for C. diff
Recent antibiotics
PPI
Advanced age
Hospitilization
Pancreatic leak
Develop metabolic acidosis
- low pH
- low bicarb
- normal anion gap
Suprapubic tenderness
Painful urination
Tx
Acute cystitis
Tx: Nitrofurantoin (5days
TMP-SMX 3 days)
Fosfomycin (single dose)
Hypernatremia due to
Free water loss rather than sodium gain
Tx hypernatremia
isotonic 0.9% NaCl if hypovolemic with unstable vital signs
If normal volume status and asymptomatic
- D5W, 0.45% NaCl
Hypernatremia causes
The 6 D’s
Diuresis Dehydration Diabetes insipidus Docs (iatrogenic)D Diarrhea Disease (kidney, sickle cell)
How to tell cause of hypernatremia
If Low urine osmolality (< 300)
- Then central or neprhogenic DI
- Check water restriction, if osm rise then central
If High urine osmolality > 600
Hyponatremia caused by
Increase in ADH
When to use hypertonic saline
Only if patient is having seizures caused by hyponatremia
When serum Na is < 120
Hyponatremia
Hypotonic serum osmolality < 280
Assess EC fluid
Low EC fluid Hypovolemic hypotonic - GI losses (diarrhea) - burns - Diuretics - urinary obsturction - RTA
Normal
Isovolemic hypotonic
- > 100 urine osm= SIADH, hypothyroidism
- <100 osm primary polydipsia
Elevated
Hypervolemic hypotonic
- FENa < 1% Cirrhosis, CHF, Nephrotic
- FENa > 2% AKI, Chronic renal failure
Treatment of hyperkalemia
C BIG K
Calcium chloride or gluconate (IV)
Bicarbonate, B2 agonists
Insulin + Glucose
Kayexalate (sodium polystyrene sulfonate)
Only tx if > 7
ECG changes
Hyperkalemia on ECG
Peaked T waves
PR prolongation
Widened QRS
Peaked T waves
PR prolongation
Widened QRS
Hyperkalemia
26 y.o to ER with hx of depression comes in with altered mental status, tinnitus, nausea and vomiting
ABG shows pH of 7.4, PaCO2 of 22, HCO3 of 13
Diagnosis?
Acid/base?
- Compensation formula
Aspirin overdose
pH is normal
Mixed metabolic acidosis and respiratory alkalosis
Bicarb is low indicating metabolic acidosis
Winters formula that predicts PaCo2 under normal compensation should be 29 (PaCO2- 1.5 (HCO3)+8)
Her PaCO2 islower than this at 22 so concurrent respiratory alkalosis
Tx Rhabdomyolysis
Saline hydration
Mannitol
Bicarbonate
ECG to rule out life-threatening hyperkalemia
Hypokalemia on ECG
T wave flattening
U waves
ST segment depression
T wave flattening
U waves
ST segment depression
Hypokalemia on ECG
Chronic kidney disease
> 3 months of GFR > 60 mL/min
pH < 7.35
PCo2 > 44
Respiratory acidosis
Airway obstruction Acute lung disease Chronic lung disease Opioids Weakening of respiratory muscles
pH < 7.35
HCO3 < 20
Metabolic acidosis
High anion gap= MUDPILES Methanol Uremia Diabetic ketoacidosis Propylene glycol Iron tablets or INH Lactic acidosis Ethylene glycol Salicylates (late)
Normal anion gap
- Addisons
- Renal tubular acidosis
- Diarrhea
- Acetazolamide
- Spironolactone
- Saline infusion
Anion gap
Na- (Cl+ HCO3)
8-12 normal
pH > 7.45
PCO2 < 36
Respiratory alkalosis
Anxiety Hypoxemia Salicylates (early) Tumor Pulmonary embolism
pH > 7.45
HCO3 > 28
Metabolic alkalosis
Loop diuretics
Vomiting (low cl)
Antacid use
Hyperaldosteronism
Normal anion gap metabolic acidosis
Hyperchloremic
Urine pH > 5.5
Hypokalemia
Type I RTA
Defect in H secretion
Complication is nephrolithiasis
Sjogren
Normal anion gap metabolic acidosis
Hyperchloremic
Urine pH <5.5
Hypokalemia
Type II RTA
HCO3 reabsorption defect
MM
Amyloidosis
Fanconi
Cisplatin
Complication
- RIckets
- Osteomalacia
Normal anion gap metabolic acidosis
Hyperchloremic
Variable Urine pH
Hyperkalemia
Type IV RTA
Aldosterone deficiency
Prerenal
- feature seen
BUN/ Cr > 20:1
Hyaline casts
Intrinsic renal
- feature (2)
BUN/Cr < 15:1
RBC casts
RBC dysmorphic
Post infectious glomerulonephritis vs IgA nephropathy
Postinfectious glomerulonephritis
- 2-6 weeks after infection
- low C3
IgA nephropathy
- presetn concurrent with an infection
- normal C3
Nephritic syndrome findings
PHAROH
Proteinuria Hematuria Azotemia (high nitrogen content) RBC casts Oliguria (small amount urine) Hypertension
Diuretic that causes ototoxicity
Loops
Diuretic that causes pancreatitis
Thiazides
Nephritic/ nephrotic syndrome with low C3
Postinfectious glomerulonephritis
Membranoproliferative glomerulonephritis
Lupus nephritis
Tea colored urine
Edema
HTN
Recent infection
Post infectious glomerulonephritis
Low serum C3
Episodic blood in urine
Respiratory infections
GI infections
HTN
Proteinuria
IgA nephropathy (Berger disease)
Normal C3
IgA deposit
[Henoch Schonlein purpura renal manifestation is pathologically the same]
Joint pain
Blotchy purple skin lesions on trunk and extremities
Abdominal pain
Henoch Schonlein purpura
[ Immunoglobulin A vasculitis]
Sinus infections
Cavitary lung lesion
Hemoptysis
HTN
Hematuria
C-ANCA
- Name
- Biopsy
- Tx
Granulomatosis with polyangiitis
Segmental necrotizing glomerulonephritis with crescents
Tx: Corticosteriods
p-ANCA
AKI
HTN
Hematuria
Skin lesions
Lung
Microscopic polyangiitis
p-ANCA
Asthma
sinsuitis
skin nodules/ purpura
AKI
HTN
Hematuria
Eosinophilic granulomatosis with polyangiitis (Churg strauss syndrome)
eosinophils
Increased IgE
Hemoptysis
AKI
HTN
Hematuria
20 y.o
Iron deficency Anemia
- Name
- Biopsy
- Finding
- Tx
Good pasture
Linear anti-GBM deposits
Anti-basement membrane
Plasma exchange therapy
Microscopic hematuria
Proteinuria
Sensorineural deafness
- Seen on biopsy
Alport syndrome
GBM splitting
Nephritic disease (8)
Postinfxn glomerulonephritis
IgA nephropathy
Henoch Schonlein
Granulomatosis w/ polyangiitis
Microscopic polyangiitis
Eosinophilic granulomatosis with polyangiitis (Churg- Strauss)
Goodpasture
Alport syndrome
Nephrotic syndrome (7)
Minimal change
Focal segmental glomerulosclerosis
Membranous nephropathy
Diabetic nephropathy
Lupus nephritis
Renal amyloidosis
Membranoproliferative nephropathy
HTN
Edema
Hyperproteinuria
Patchy areas on biopsy
Focal segmental glomerulosclerosis
Deposits of IgG and C3 on basement membrane
Edema
Hyperproteinuria
Membranous nephropathy
Associted with HBV, HCV
Membranoproliferative nephropathy
Tram track double layered basement membrane
Low serum C3
Membranoproliferative nephropathy
Palpable purpura Arthralgias Proteinuria Hematuria Edema Low C3 Positive HCV
Mixed cryoglobulinemia
Staghorn calculi
Urease producing bacteria
Proteus
Klebsiella