Renal Flashcards

(65 cards)

1
Q

What defines CKD

A

irreversible loss of function over 3 months

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2
Q

List the causes of CKD

A

HTN
DM
vascular disease
AKI
glomerulonephritis

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3
Q

What part of the nephron is responsible for filtering waste

A

Glomerelus

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4
Q

How does DM cause CKD

A

Glucose sticks to proteins that the kidney is filtering
reduces blood floe through EFFERENT arteriole
Blood cant leave glomerelus
build up of pressure
hyperfiltration and slow decline in filtering ability

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5
Q

How does HTN cause CKD

A

decreased renal perfusion due to narrowing of kidneys
less oxygen reaches kidney
ischaemic injury

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6
Q

What is released when a decrease in renal perfusion is identified

A

Renin
Na+

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7
Q

What are the hypertension targets for a patient with an ACR <70
PCR <100

A

140/90

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8
Q

What are the hypertension targets for a patient with an
ACR >70
PCR >100

A

130/90

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9
Q

What should you give a patient as first line hypertensive treatment if their ACR <30

A

ACEi
ARB

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10
Q

What should we pair with ACEi and ARB medicartion wise andwhy

A

Calcium resonium
helps reduce hyperkalaemia risk

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11
Q

What is the only licensed SGLT2 for CKD

A

Dapagliflozin

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12
Q

What serious affects can SGLT2 cause

A

DKA
Fournier’s gangrene

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13
Q

What are the 3 stages of drugs you gice for hypertensives in CKD

A

ACE/ARB
Cardioseletive beta blocker
SGLT2i

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14
Q

What are the dangers of hyperkalaemia

A

Cardiac arrest
arrythmias

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15
Q

How does calcium resonium work

A

Exchanges K+ ions for H+ ions

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16
Q

What is the treatment for acidosis caused by CKD

A

Sodium bicarbonate 500mg TDS

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17
Q

How does CKD cause anaemia

A

kidney reduces production of erythropoietin
decrease in RBC production
increase in amaemia

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18
Q

Wat are the symptoms of anaemia

A

Breathlessness
fatigue
angina

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19
Q

How do we treat anaemia

A

Iron supplements
erythropoietin injections

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20
Q

How does CKD cause renal bone disease

A

Decrease in vitamin D activation
decrease in Ca2+ absorbed
increase release in parathyroid hormone
increase in bone turnover to try and release more Ca2+
decrease in bone density

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21
Q

What is the treatment for renal bone disease

A

Phosphate binder
decreased phosphate diet

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22
Q

Give an example of a phosphate binder

A

Calcium acetate

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23
Q

When is IV iron theapy recommended

A

<200mcg/L
Start ferinject

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24
Q

When do we initiate dialysis

A

GFR <7ml/min

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25
What does dialysis aim to do
Works by filtering waste that the kidney cant mimics glomerulus mimics loop of henle
26
What are the 2 types of dialysis
Haemodialysis peritoneal
27
What is surgically done for haemodialysis
arteriovenous fistula
28
How frequently do you need to go to hospital for haemodialysis
4 hours 3 times a week
29
What is the mac amount of weight a patient can gain inbetween dialysis sessions
1.5kg
30
How is peritoneal dialysis set up
catheter through peritoneal space in abdomen
31
How many exchanges a day do you need with peritoneal dialysis
4
32
How is fluid filtered in peritoneal dialysis
fluid drained out under gravity
33
What type of catheter is used in perioneal dialysis
Tenckhoff
34
What are the advantages of peritoneal dialysis
Reduced anaemia better cardiac stability can be done at home
35
Why does peritoneal dialysis allow for beter cardiac stability
Fluid rate or removal = more gentle
36
What are some disadvantages of peritoneal dialysis
Peritoneal membrane can become fibrosed risk of hyperglycaemia due to high glucose content solutions to provide conc gradient less clearance of urea and creatinine
37
What dietary modifcations do you need to do when on dialysis
Low potassium low phosphate
38
When do we need a high protein diet in dialysis and why
CAPD in peritoneal because you can lose protein through fluid
39
How much urine output do you need for haemodialysis and peritoneal dialysis
Haemodialysis = 500ml/day Peritoneal dialysis = 750ml/day
40
What are the 3 types of AKI
Pre-renal intrinsic post renal failure
41
What are some causes of pre-renal failure
Reduced renal perfusion infection reduced cardiac output hypovolemia
42
What effect do NSAIDs have on the kidney
Inhibits prostaglandins cause constriction of afferent arteriole
43
What drugs effect the efferent arteriole in aki and how
ACEi ARB promote dilation of efferent arteriole
44
What does a constricted afferent arteriole and a dilated efferent arteriole cause
Decrease in GFR and filtratio reduce perfusion and decrease filtration
45
What is intrinsic failure
structual damage ischaemic damage infection damage to renal tissue
46
Give some examples of nephrotoxic drugs
Penicillin's allopurinol azathioprine cephalosporins
47
What is pre-renal failure
obstruction to urinary flow caused by blockage kidney stones structual changes enlarged prostate
48
How does an enlarged prostate cause post renal failure
Puts pressure on the urethra and causes urinary blockage
49
What are the risk factors for AKI
previous AKI over 65 CKD cardiac disease diabetes
50
What do we give a patient if they have fluid overload
Furosemide loop diuretics
51
How do we deal with fluid depletion
fluid resuscitation build up blood volume monitor fluids
52
how is creatinine and urea produced
Byproduct of protein metabolism
53
What is haematuria
Blood in urine
54
What are the albumin:creatinine ratio in non-diabetics
>70mg/mmol
55
What is albumin
A protein in the blood that is a transporter
56
What does high urea levels do in the body
Compete for drug binding sites means drugs cant distribute in the body as easily
57
What does an AKI do to insulin
Decreased insulin metabolism
58
What vitamin do the kidneys metabolism
Vitamin D
59
What routine tests do we do for kidney function
Creatinine urea eGFR albumin:creatinine
60
What test do we do for UTI
Mid-stream urine
61
What can also raise urea
Dehydration muscle injury infection
62
How does AKI effect drug distribution
less protein binding due to high urea an dlow albumin competing with drug
63
How do we correct hyperkalaemia
calcium glutonate 10% to protect heart rapid acting insulin
64
How do we treat muscle dysfunction
Quinine ropinirole
65
What vaccination is given to patiente with CKD every 5 years
Hepatitis B