dyslipidaemia Flashcards

1
Q

what does total cholesterol include?

A

VLDL, LDL, and HDL

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2
Q

what are the desirable levels for total cholesterol, LDL, and TGs?

A

total <5, LDL <2.5, TG <2.5

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3
Q

what in the diet tends to raise LDL?

A

high trans fats and saturated fats (eg butter, cream, animal fat, fried foods)

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4
Q

what in very basic terms do LDL and HDL do?

A

LDL clogs arteries and HDL removes bad cholesterol from arteries

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5
Q

what are the desirable HDL levels?

A

> 1.2 in women, >1 in men
higher the better

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6
Q

what is the desirable total cholesterol /HDL ratio?

A

<4

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7
Q

what are the primary causes of dyslipidaemia?

A

genetic dyslipidaemia
familial hypercholesterolaemia

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8
Q

what are the secondary causes of dyslipidaemia?

A

uncontrolled diabetes
obesity, hypothyroidism
smoking
liver disease, excess alcohol intake, nephrotic syndrome

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9
Q

what are some signs of high cholesterol in the body?

A

tendon
xanthomata
xanthelasmata
corneal arcus

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10
Q

which sign is the most suggestive of familial hypercholesterolaemia?

A

tendon xanthomata

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11
Q

where are xanthelasmata found?

A

eyelids

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12
Q

what is corneal arcus?

A

light ring around iris caused by cholesterol deposits

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13
Q

how do you diagnose FH?

A

1) take 2 measurements if LDL concentration
clinical diagnosis levels = >13 in adult, >11 in child up to 15yo.
2) use simon broome criteria/dutch lipid network to aid diagnosis
DLCN score >5
3) if clinical diagnosis based on these, refer to specialist for definitive diagnosis

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14
Q

what is the non pharmacological management for high cholesterol?

A

dietary modifications -replace sat/trans fat with unsaturated fats (avocadoes, olive oil, peanut oil)
lower alcohol
lose weight
stop smoking
more exercise

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15
Q

who is atorvastatin 20mg ON offered to for secondary prevention?

A
  • people with 10%+ QRISK3 score
  • people with <10% risk but dyslipidaemia-clinical judgement.
  • T1DM +age >40/diabetes for >10y/established nephropathy/CVD risk factors
  • people with CKD
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16
Q

what are people with CVD offered for secondary prevention?

A

atorvastatin 80mg ON

17
Q

what is the cholesterol target for people on statins?

A

> 40% reduction in non HDL cholesterol

18
Q

what reviewing do people on statins need?

A

annual reviews
ALT 3 and 12 months after starting them

19
Q

what is the 1stline treatment for FH?

A

high intensity statin with aim of 50% reduction in LDL from baseline

20
Q

what is the definition of a high intensity statin?

A

dose at which a reduction in LDL-cholesterol of greater than 40% is achieved

21
Q

what are some examples of lipid soluble statins?

A

atorvastatin, simvastatin

22
Q

what is a v rare but serious side effect to look out for with statins?

A

rhabdomyolysis -always do ck if they have any muscle sx.

23
Q

what is the treatment pathway for FH?

A

1stline -statin
2ndline -add ezetimibe if tolerating statin, just ezetimibe if statin not good for them
3rdline -specialist led -consider fibrates or bile acid sequestrants

24
Q

what are 2 examples of fibrates?

A

fenofibrate
gemfibrozil

25
Q

what is a risk of fibrates +statins?

A

muscle related SEs-use with caution together and can’t use gemfibrozil -too big risk

26
Q

what do you need to do before starting lipid meds?

A

rule out secondary causes
one full lipid profile (doesn’t need to be fasting)

27
Q

which levels of cholesterol would prompt specialist assessment?

A

total cholesterol >9 or non HDL >7.5

28
Q

which levels of TG would prompt urgent specialist review?

A

> 20 not explained by excess alcohol or poor glycaemic control

29
Q

what do you do if someone’s TG levels are between 10 and 20?

A

do fasting TG measurement 5d-2w after and seek specialist advice if it remains above 10.