Urinary Flashcards
What is the route of the Ureter?
- Arises from the pelvis of each kidney
- Descends on the top of the psoas major
- Crosses in front of the common iliac arteries
- Runs postero-inferiorly on the lateral walls of the pelvis
- Curves antero-medially to enter the bladder
What is the vesicoureteric junction?
The junction between the distal ureter and the bladder
What is the pelviuteric junction?
Junction between the pelvis of the kidney and the proximal ureter.
At what spinal level would you find the right kidney?
T12-L3
At what spinal level would you find the left kidney?
T11-L3
Which kidney is lower and why?
Right kidney is 1cm lower due to the liver
What structures lie retroperitoneal?
SAD PUCKER
Suprarenal glands
Aorta/IVC
Duodenum (2nd+3rd part)
Pancreas
Ureters
Colon (ascending + descending branches)
Kidneys
oEsophagus
Rectum
What would we see on a CT at T12?
Hilium visible on left kidney but not right kidney
Which artery causes high pressure in the glomerular capillaries?
Efferent arteriole (and it’s resistance to flow)
What term best describes normal Bowman’s capsule oncotic pressure?
Negligible
(no proteins here so no oncotic pressure)
Which constituent of the filtrate has a rate of urinary excretion that is lower than it’s glomerular filtration rate?
Glucose
(most of it is reabsorbed)
What happens to the ultra-filtration process in lupus nephritis?
Unable to separate small and large molecules
The fluid found in the bowman’s capsule is not ultra-filtrate and appears more like plasma
How many nephrons does the human kidney have?
1,000,000
What components of plasma will be present in the glomerular filtrate immediately before it enters the loop of henle?
Electrolytes
Glucose
Amino Acids
Urea
Large molecular weight proteins aren’t
Which diuretic is a patient on that has hypokalaemia, uricemia and gout?
Thiazide like diuretic
(acts on the DCT)
Which diuretic is a patient on that has hypokaleamia, metabolic alkalosis and ototoxicity?
Loop diuretic
Which class of diuretic is Triamterene?
K-sparing diuretic
(blocks Na channels in the collecting duct)
What side effects can you get on spironalactone?
Gynecomastia
Impotence
BPH
Which drug is associated with a reduction of mortality in HF and LV dysfunction?
Spironolactone
What is the main action of ADH?
Vasoconstriction
How will a patient present with diabetes insipidus?
Excessively thirsty regardless of their fluid intake
How can high levels of ADH cause hyponatraemia?
Dilutional hyponatraemia
(Increase in aquaporin channels at collecting duct means more water is reabsorbed)
What effect does sweating all day without fluid intake cause?
Osmolarity increased, volume decreased
Which fluid regimen would give you a patient who is nil by mouth but euvolaemic?
0.18% sodium chloride, 4% dextrose over 12 hours
What fluid regimen would you give to a patient who has suspected AKI?
1 litre 0.9% Sodium Chloride over 8 hours
(8 hours to not overload AKI)
What can BPH lead to in the kidneys?
Renal Cortical atrophy
A patient has an AKI following trauma and hypotension. What has caused this?
Acute tubular injury
Why can a patient develop an AKI after a MI?
Acute tubular injury
Which disease is it important to to screen for kidney disease in using the albumin-creatinine ratio?
Diabetes
How does parathyroid hormone affect the kidney’s handling of phosphate?
Decreases phosphate reabsorption in the PCT
What is an early indicator of glomerulosclerosis in diabetic patients?
Microalbuminuria
A patient has urinary incontinence, which nerve endings are more likely to fire APs?
Urinary bladder to the sacral region (S2,S3,S4)