GU Flashcards
common presentations of a renal colic?
acute loin pain that comes and goes, can’t get comfortable and radiates to groin
what is the gold standard investigation for a renal colic?
non-contrast CT of kidney, ureter and bladder
what is the complication that may occur when obtaining a contrast CT?
risk of anaphylaxis
what is the first line investigation for a renal colic?
XR of kidney, ureter and bladder - isn’t as specific as CT
What is the most common composition of renal stones?
calcium oxalate
what is most common presentation in bladder cancer?
painless haematuria
what storage symptoms occur in BPH?
Frequency, Urgency, Nocturia
what voiding symptoms occur in BPH?
Straining, Hesitancy, Incomplete emptying, Poor stream, Post-micturition dribbling
how does tamsulosin work in respect to BPH?
- it is a selective alpha 1-adrenenergic receptor antagonist
- relaxes the smooth muscle in the bladder neck and prostate -> increasing urinary flow rate -> improves obstructive symptoms
what are potential side effects of alpha 1 adrenoceptors, e.g. tamsulosin?
postural hypotension, dizziness and syncope (due to alpha 1 adrenoceptors also being found in smooth muscle of blood vessels, therefore can also lower vascular resistance)
list the most common organisms to cause a UTI
KEEPS - Klebsiella, E. Coli, Enterococcus, Proteus/Pseudomonas, Staphylococcus saprophyticus
how do you define minimal change disease?
Proteinuria (>3.5g/day), Hypoalbuminaemia, Oedema (periorbital and arms), Hyperlipidaemia and lipiduria
why does proteinuria occur in minimal change disease?
damaged glomerulus is more permeable → more protein come across from blood into nephron → proteinuria
why does oedema occur in minimal change disease?
oncotic pressure falls due to less protein in blood → lower osmotic pressure → water driven out of vessels into tissues
why does Hyperlipidaemia and lipiduria occur in minimal change disease?
loss of protein = less lipid synthesis → more lipids in blood → more in urine
why do potassium levels need to be regulated in AKI?
failed kidney function -> inability to excrete potassium -> builds up in blood -> hyperkalaemia -> medical emergency / cardiac arrest
describe the stages of CKD in relation to GFR
- Stage 1 > 90 ml/min with evidence of renal damage
- Stage 2 60-89 ml/min with evidence of renal damage
- Stage 3a 45-59 ml/min with or without renal damage
- Stage 3b 30-44 ml/min with or without renal damage
- Stage 4 15-29 ml/min with or without renal damage
- Stage 5 <15 ml/min, established renal failure
describe furosemide’s pharmacology
a loop diuretic which acts on the ascending limb of the loop of Henle and inhibits the NKCC2 channels
which tumour marker is most likely to be raised in suspected testicular cancer?
alpha feto-protein (AFP)
what is the gold standard investigation for transitional cell carcinoma?
cystoscopy
what is the name of the staging system used for prostate cancer?
Gleason scoring
those with ADPKD have a 10-15% chance of suffering with a what?
intercranial aneurysm e.g. subarachnoid haemorrhage
what is released from where in response to decreased renal perfusion (e.g. hypovolaemia)?
renin from juxtaglomerular cells in kidney
how can you determine between nephrotic and nephritic syndrome in a q?
nephritic = haematuria
nephrOtic = nO haematuria