Adverse Effects Flashcards
Enzyme Inducers
PC BRAS
P henytoin
C arbimazole
B arbiturates
R ifampicin
A lcohol (chronic excess)
S ulfonylureas
Enzyme inhibitors
AO DEVICES
A llopurinol
O meprazole
D isulfuram E rythromycin V alproate I soniazid C iprofloxacin E thanol (acute) S ulfonamides
Surgical drugs to stop
I LACK OP
I nsulin
L ithium (1 d before)
A nticoag/platelets (~1 w before)
C OCP/HRT (4 W before)
K -sparing diuretics (day of)
O ral hypogylcaemics P erindopril (and other ACE-i - day of)
How much fluid lost?
Increased HR or decreased BP/UO
500 ml
How much fluid lost?
Decreased UO + increased HR
1 l
How much fluid lost?
Decreased UO + increased HR + signs of shock
> 2 l
Causes of hyponatraemia
Hypovolaemic
Dehydration (D & V)
Addison’s
Diuretics
Causes of hyponatraemia
Euvolaemic
SIADH
Hypothyroidism
Causes of hyponatraemia
Hypoervolaemic
Failure: Heart Renal Liver (low albumin) Thyroid
Causes of neutropenia
Viral infection
Clozapine
Carbimazole
Causes of hypokalaemia
DIRE
D rugs (loop & thiazide) I nadequate intake R enal tubule acidosis E ndocrine (Cushing's/Conn's)
Causes of hyperkalaemia
D rugs (K-sparing & ACE-i)
R enal failure
E ndocrine (Addison’s)
D KA
Causes of prerenal AKI
Increase in urea > increase in creatinine
Dehydration
Renal artery stenosis
Causes of intrarenal AKI
Increase in urea < increase in creatinine
Not palpable
INTRINSIC
I schaemia N ephrotoxic abx T ablets (NSAIDs/ACE-i) R adiological contrast I njury (rhabdomyolysis) N eg bi crystals (gout) S yndromes (glomeruloneph) I nflammation (vasculitis) C holesterol emboli
Causes of postrenal AKI
Increase in urea < increase in creatinine
Palpable
Lumen (stone)
Wall (tumour, fibrosis)
External pressure (BPH, prostate ca, lymphadenopathy, aneurysm)