Primary Care Flashcards
FEV1:FVC ratio of what indicates COPD
< 70% or 0.7
Stages of COPD based on predicted FEV1 %
Stage 1: >80%
Stage 2: 50-79%
Stage 3: 30-49%
Stage 4: < 30%
MRC Dyspnoea Scale Grade 1
Not troubled by SOB except on strenuous exercise
MRC Dyspnoea Scale Grade 2
SOB when walking quickly or uphill
MRC Dyspnoea Scale Grade 3
Walks slower than contemporaries
Has to stop due to SOB
MRC Dyspnoea Scale Grade 4
Stops for breath after 100m
MRC Dyspnoea Scale Grade 5
Too breathless to leave home
Breathless when dressing
Target PaO2 for COPD patients
8KPa
Requirements for long-term O2 therapy in COPD?
Non-smokers with a PaO2 < 7.3KPa
OR
Secondary polycythaemia, Peripheral oedema, Pulmonary Hypotension
Prophylactic antibiotics for COPD
Azithromycin 250mg 3x weekly
Paroxysmal AF
2+ episodes lasting 30 seconds to 7 days
Persistent AF
Continuous for 7+ days
Long standing persistent AF if 12+ months
Permanent AF
Long-standing persistent and resistant to treatment
When should Amiodarone be used following electrical cardioversion in AF?
4 months before, and for 12 months afterwards
What level of NT-proBNP in heart failure requires a referral?
400-2000ng/L
What factors may decrease NT-proBNP?
Obesity
Afro-Caribbean ethnicity
Diuretics, ACEi, Beta Blocker use
NYHA Classification of Heart Failure
- No limitations
- Slight physical limitations
- Marked limitations
- Symptoms at rest
When should electrical cardioversion be offered in AF?
Patients who have had AF persisting for 48 hours of longer
Transoesophageal echocardiography-guided cardioversion OR conventional cardioversion deemed equally efficacious
Indications for pharmacological rate control in AF (Beta blocker/ digoxin/ Diltiazem)
AF with a reversible cause
Patient has heart failure caused by AF
New onset AF
Atrial flutter suitable for ablation
Risks of AF with stroke
Larger infarcts Increased disability Death Long-term care Impaired cognitive function Dementia
Anti-arrhythmic drugs for AF
Beta-blockers
Flecainide, propafenone (pill in the pocket vs regular)
Sotalol, dronedarone, amiodarone
When to cardiovert in an emergency AF presentation
Acute new onset AF with haemodynamic instability
Principles of lifestyle management in heart failure
Food- salt restriction, fluid restriction if hyponatraemic, alcohol intake Smoking Yearly influenza vaccinations Driving e.g. LGV, minibus licenses Air travel- may be affected Pregnancy and contraception
Which Heart failure patients should be offered a loop diuretic?
Those with preserved LVEF ( greater than 40%)
e.g. Furosemide 80mg OD
Secondary causes of hypertension
Renal disease (mostly intrinsic) Endocrine (Cushing's, Conn's Phaeochromocytoma, Acromegaly, Hyperparathyroidism Pregnancy Coarctation of the aorta Steroids MAOIs
Stage 1 Hypertension and management
BP 140/90 mmHg
(5 less for ambulatory monitoring)
Lifestyle management alone initially
Stage 2 Hypertension
BP 160/100 mmHg
(5 less for ambulatory monitoring)
Start with ACEi or CCB therapy
Indications for pharmacological management of Stage 1 hypertension
Under 80 with:
- Target organ damage
- Diabetes
- Renal disease
- QRISK2 20% +
Thiazide like diuretics
e.g. Bendroflumethiazide, Indapamide, Chlortalidone
Best taken in the morning as this has best diuretic effect
Avoid in gout, hypokalaemia, hyponatraemia
ECG changes that may be seen in stable angina
Pathological Q waves
ST depression
T wave inversion
LBBB
Initial treatment for Stable Angina
GTN spray +
Beta blocker or CCB
Additional drug treatments for Stable Angina
Long acting nitrates
Ivabradine (cardiotonic agent)
Nicorandil (vasodilator)
Ranolazine
First line imaging for stable angina
64 slice CT coronary angiography
Indications for CABG in stable angina patients
Imaging identifies left main stem or triple vessel disease
For how long may Ticagrelor or Clopidogrel be continue following a STEMI or a NSTEMI?
How long may aspirin be continued for?
12 months
Aspirin 75mg is continued indefinitely
What is the dose of statins to be used in primary prevention (patients with a QRISK2 > 10%)?
Atorvastatin 20mg
Which patients should receive a low dose statin as a primary prevention regardless of QRISK2 score?
T1DM patients over 40 or with diabetes for 10+ years or with nephropathy
CKD patients
What is the dose of statin used in secondary prevention?
Atorvastatin 80mg
Driving after a heart attack
Don’t have to notify DVLA
Should stop for around 4 weeks
GTN spray advice in stable angina
- Use before exercise
- If needed, repeat dose after 5 minutes
- Call an ambulance after 2 doses
How is type 1 DM diagnosed?
Random CBG of 11mmol/L
OR
Fasting plasma glucose 7mmol/L on 2 occasions
Plus:
Polyuria, polydipsia, weight loss, increasing tiredness
How is Type 2 DM diagnosed?
HbA1c >48mmol/mol (6.5%) on 2 occasions
OR
HbA1c >48mmol/mol (6.5%) + blood glucose diagnosis
In which patients may HbA1c measurement be unreliable?
Under 18s Pregnancy Chronic Kidney Disease HIV Pancreatic disease
How often are clinic HbA1c levels measured in T1DM
3-6 monthly
1st line insulin therapy for adults
Multiple basal bolus insulin injection
2nd line insulin therapy for adults
Twice daily Insulin Detemir
Glucose targets in Type 1 Diabetes
Fasting Plasma Glucose (waking):
5-7mmol/L
Fasting Plasma Glucose (before meals):
4-7mmol/L
Post-meals (90 minutes):
5-9 mmol/L
What does DAFNE stand for?
Dose Adjustment for Normal Eating
Diet regimes in normal eating
What is the target blood pressure in Type 1 Diabetes and what is the first line treatment?
135/85mmHg
130/80 mmHg if albuminuria/ metabolic syndrome
1st Line: ACEi or ARB
4 stages of Diabetic Eye disease and features
1 (Mild): Microaneurysms
2 (Moderate): Haemorrhages, cotton wool spots
3 (Severe): Hard exudates
4 (Proliferative): New vessel formation near optic disc
Monitoring in Type 1 Diabetes
Retinopathy (3 months initially; then review annually)
Neuropathy/ Foot Care (annual review)
Nephropathy (Measure Albumin: Creatinine annually)
Erectile Dysfunction (offer Sildenafil)
Gastroparesis advice
Cardiovascular risk (lipids, BP)
Rapid Acting Insulins
Lispro
Actrapid
Aspart
Glulisine
Intermediate Acting Insulins
Isophane
Long Acting Insulins
Glargine, Detemir
Blood Pressure targets in T2DM
140/80 mmHg
When should statins be stopped in Non-Alcoholic Fatty Liver Disease (in context of T2DM)?
If liver enzyme levels double in 3 months
HbA1c target for T2DM patients controlled by lifestyle/ diet or a single drug (metformin)?
48mmol/mol (6.5%)
HbA1c target for TD2m patients controlled by any drug associated with hypoglycaemia?
53mmol/mol (7%)
At what point should therapy of T2DM be intensified, and what is the new target HbA1c?
When HbA1c reaches 58mmol/mol (7.5%)
New target HbA1c is 53mmol/mol (7%)
2nd Line intensification therapies in T2DM after Metformin?
DDP4 Inhibitors- Gliptins
Pioglitazone
Sulfonylureas (gliclazide, glimepiride)
Contra-indications to Metformin
Renal Impairment (eGFR <30) Alcohol intake high
Side effects of Metformin
Weight Loss (reduced weight gain) Cardioprotective Abdominal pain, nausea and vomiting
Important facts on Sulfonylureas
Can cause Hypoglycaemia
Increases risk of weight gain
Contra-indications to Pioglitazone in T2DM
Bladder cancer Heart failure Diabetic Ketoacidosis Macroscopic haematuria Caution in elderly
Important features on SGLT2 Inhibitors (e.g. Canagliflozin)
Well tolerated
Increased urine output
Increased infection risk
Important features on DDP4 Inhibitors e.g. Sitagliptin
Generally well tolerated
Weight neutral
May be effective only for a short period
Indications for GLP-1 Mimetics in T2DM
BMI 35+
can be offered in BMI under 35 if insulin would be detrimental, or weight loss beneficial to other health problems
Which patients should be screened for CKD?
Diabetes Hypertension Recurrent UTIs CV Disease Structural renal disease Family History of End Stage Kidney Disease Patients on Nephrotoxic drugs
Most common identifiable cause of CKD
Type 2 Diabetes
Basis of CKD Diagnosis- investigative tests
Serum Creatinine Measurement (eGFR)
Proteinuria (Albumin: Creatinine Ratio)
Haematuria
Renal USS
When does CKD normally become symptomatic
Stage 4
Serum Creatinine Measurement in CKD
Don’t eat meat 12 hours before the test
Repeat within 2 weeks if <60
Preferred test for proteinuria in CKD
Albumin: Creatinine Ratio (is more sensitive to lower levels than Protein:Creatinine Ratio)
Action to take upon ACR results in CKD
3-70 mg/mmol: Repeat test in 3 months
70 mg/mmol: Refer to nephrology
Which two investigations are used to stratify risk in CKD
What would not count as CKD?
eGFR and ACR
If eGFR is Stage 1/2; and ACR is under 3, then there is no CKD in absence of other markers of kidney damage
Common blood test findings in CKD
Hypocalcaemia Raised phosphate Raised Alk Phos Raised Parathyroid Hormone Anaemia
Blood pressure target in CKD
140/90 mmHg
130/80 if ACR is greater than 70
First line treatment for Hypertension in CKD
ACEi or ARB
Dietary advice in CKD
Moderate protein consumption
Restrict potassium
Avoid high Phosphate foods (milk, cheese, eggs)
When should oral Sodium Bicarbonate be offered in CKD
GFR < 30
Serum Bicarbonate < 20 mmol/L
Management of restless legs/ cramps in CKD
Check ferritin levels
Can prescribe Clonazepam/ Gabapentin
What may affect HbA1c readings?
Haemglobinopathies- abnormally short RBC lifespans