Mehlman/UW gout + pseudogout 12-14 (2) Flashcards
UW. Causes of gout? increased production 4
Primary gout (idiopathic)
Myeloproliferative/lymphoproliferative disorders
Tumor lysis syndrome
Hypoxantine guanine phosphorybosyl transferase deficiency
dar buvo pamineta psoriaze prie Q explanation
UW. Causes of gout? decreased urate clearance 2
CKD
Thiazide/loop diuretics
M. what presentation?
arthritis of hands and knees + gouty torphi (monosodium urate crystal deposition)
M. classical case?
middle age guy + drinks alcohol + eats a lot of meat + drinks bags of nucleic acids
UW. Risk factors? 3 main
Medications: diuretics, loe dose aspirin
Diet: high protein diet (meat, seafood), high-fat food, sweetened beverage
Heavy alcohol consumption
kiti: AH, obesity, CKD, organ transplant
UW. what 3 things decr risk?
Dairy product intake
Vit C (>=1500 mg/d)
Coffee intake (>=6 cups/day)
M. Patients need not have hyperuricemia to have gout.
likewise, patient with hyperuricemia can be asymptomatic and not develop gout
.
UW. DIagnosis gout 2
a) X ray - normal in early
Punched-out erosions with an overhanding rim of cortical bone (rat bite lesion) in chronic gout
b) synovial fluid
- Inflammatory aspirate
- needle shaped negatively birefringent crystal (yellow = negative)
M. Tx for acute gout?
1st INDOMETHACIN (nsaid)
then
2nd oral corticosteroids
then
3rd Colchicine
M. Tx for acute gout.
If alergy to nsaids?
colchicine
steroids were not listed for the same Q.
M. Tx for acute gout.
If renal insuff?
corticosteroids
M. Tx for chronic gout. ?
ie Tx between attacks to decr. recurrence
XANTINE INHIBITORS, ie allopurinol or febuxostat
M. What DONT GIVE in acute?
XANTINE INHIBITORS, ie allopurinol or febuxostat
they are used only in chronic. in acute they can worsen flares
M. Probenecid. what group?
it inhibits organic anion transporter (OAT) in the kidney, which both inhibits reabsorption of uric acid AND secretion of beta-lactams –> therefore can be used TO MAINTAIN beta-lactam levels in serum.
it inhibits organic anion transporter (OAT) in the kidney, which both inhibits reabsorption of uric acid AND secretion of beta-lactams –> therefore can be used TO MAINTAIN beta-lactam levels in serum.
what drug?
probenecid
M. Tx for acute gout. 1st?
indometacin (nsaid)
M. Tx for acute gout. 2nd?
oral corticosteroids
M. Tx for acute gout. 3rd
cochicine
M. Dont give probenecid to patients with Hx or urolithiasis (due to drug causing increased excretion of uric acid within renal tubules)
.
UW. in general gout management? 2
lifestyle modifications
drugs
UW. gout. what is ,,complicated disease”?
tophi formation
uric acid formation
M. Gout. Crystals, causing urolithiasis are radiolucent on xray.
.