CardioResp Flashcards
List the cardiac questions
Chest pain SOB Palpitations Dizziness/syncope Orthopnoea/PND Peripheral oedema
List modifiable and non modifiable risk factors for IHD
Modifiable: Hypertension Diabetes Obesity Hypercholesterolaemia Smoking Non modifiable: Age Gender Family history
List cardiac differentials for breathlessness
Acute - severe pulmonary oedema, MI, arrhythmia, pericardial disease with effusion
Chronic - LV dysfunction, valvular disease, arrhythmia, pericardial disease with effusion, coronary artery disease
Describe the NYHA classification of chronic heart failure
I - no limitation of physical activity, fatigue, breathlessness, palpitation
II - slight limitation of physical activity + angina
III - marked limitation of physical activity, moderate HF
IV - inability to carry out any physical activity without discomfort, severe HF
List differentials for chest pain
Cardiac - MI, angina, pericarditis Aortic dissection Lung/pleura - pneumothorax MSK - inflammation Oesophagus - GORD, gastritis
Explain ECG axis
aVL - -30 I - 0 II - +60 aVF - +90 III - +120 aVR - -150
How is an ECG calibrated?
Paper runs at 25 mm/s
One large square - 5mm = 0.2s
Five large squares = 1s (300/min)
Rate = 300/R-R
Describe the protocol for interpreting an ECG
- Machine in working order? 25mm/a
- Check correct person “12 lead ECG of…”
- Rate - regular (300/RR) or irregular (QRSs x 6)
- Rhythm - P wave preceded by QRS = sinus. AF = absent P waves, irregular. Atrial flutter = saw tooth P waves, block. VT = 120-180, broad QRS. VF/asystole = capture or fusion beats, concordance.
- Axis
- Intervals - PR, QRS complex, QT
- ST segment/T wave changes
- R wave progression
List the possible locations of ischaemia according to ECG changes
V1-V4 - anteroseptal, LAD V1-V6 - anteroapical, LAD V4-V6 - anterolateral, LAD V5-V6, I, aVL - lateral, circumflex II, III, aVF - inferior, circumflex, RCA V7-V9 - posterior, circumflex
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of aortic stenosis
Pale, sweaty, elderly Sinus rhythm, tachycardia, low BP Low volume, slow rising pulse Normal JVP Apex non displaced, pressure loaded Thrill Ejection systolic, crescendo decrescendo, radiates to carotid (LUB SH DUB)
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of aortic regurgitation
Corrigan’s, de Musset’s, quincke’s, pistol shot femoral
Normal pulse, wide pulse pressure
High volume, collapsing pulse
Normal JVP
Displaced, volume loaded thrill
No thrill
High pitched diastolic murmur, heard best at left sternal edge in expiration with patient leaning forward (LUB DUB SH)
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of tricuspid regurgitation
COPD/lung disease, elephant ears, pulsatile liver
Normal pulse and BP
JVP - giant V waves, sharp Y descent
Normal apex beat
Right ventricular heave
Pansystolic murmur at lower sternal edge, heard best in inspiration (LUB ZZZ DUB)
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of mitral stenosis
Mitral facies (malar flush)
AF
Normal or low volume pulse
Raised JVP
Non displaced, tapping (open snap) apex beat
Right ventricular heave
Rumbling, mid diastolic murmur, heard best with bell in expiration with patient rolled to left (LUB DUB RRR)
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of mitral regurgitation
Normal general appearance, connective tissue disorder, pulse (maybe AF), blood pressure and JVP
Displaced, volume loaded apex beat
Right ventricular heave, thrill (rare)
Pansystolic murmur radiates to axilla (LUB ZZZ DUB)
Describe the general appearance, pulse rate and rhythm, volume and character, internal jugular, apex beat, palpation and auscultation findings of a small VSD
Normal appearance, pulse, block pressure, JVP and apex beat
Thrill at lower left sternal edge
Loud, harsh pansystolic murmur (LUB ZZZ DUB)
List differentials of bradycardia on ECG
Sinus node disease, sinus bradycardia
AV block
Describe the different types of heart block
1st degree - widened PR
2nd degree:
Mobitz I/Wenkebach) - progressive lengthening until a dropped QRS = longer longer longer drop
Mobitz II - intermittent failure of AVN = Ps don’t get through
3rd degree/complete - no synchronisation between Ps and QRS
*escape rhythm will be regular
Define trifascicular block
Bundle branch block
Left axis deviation
Widened PR interval
List differentials of tachycardia on ECG
Narrow complex, regular - sinus tachycardia, SVT, AVRT, AVNRT, atrial flutter, atrial tachycardia
Narrow complex, irregular - AF
Broad complex, regular - antidromic AVRT, VT/BBB
Broad complex, irregular - AF, atrial flutter, pre excited AF, toursades de points
List management of tachycardia
Narrow complex - ABC, O2, IV access, fatal manouvres, adenosine 6mg, antiarrhythmic, DC cardioversion (if haemodynamically unstable)
Broad complex - ABC, arrest call if pulseless, amiodarone/lidocaine, K+/Mg2+ if needed, sedation, DC cardioversion
Define atrial fibrillation
Abnormal heart rhythm, irregular beating of atria
Absent P waves, irregularly irregular on ECG
List some risk factors for AF
Hypertension, valvular heart disease, coronary artery disease, cardiomyopathy
COPD, sleep apnoea, obesity
Excess alcohol, diabetes, thyrotoxicosis
Describe the types of AF
Paroxysmal - spontaneously back to normal <7 days
Persistent - back to normal with assistance/>7 days
Long standing persistent/permanent
List some signs and symptoms of AF
Asymptomatic, palpitations, angina, SOB, tachycardia, irregularly irregular pulse
Describe the management of AF
- Rhythm control - cardioversion (DC/amiodarone/procainamide)
- Rate control - B blockers (bisoprolol, metoprolol), CCB (diltiazem, verapamil), digoxin, amiodarone
- Thromboembolic prophylaxis - warfarin/NOAC
List contraindications of flecainide
Structural heart disease
IHD
What is the CHA2DS2VASC score and when is it used?
To determine if anticoagulation is necessary in AF Congestive heart failure = 1 Hypertension = 1 Age >75 = 2 Diabetes = 1 Stroke/TIA/thromboembolism history = 2 Vascular disease (peripheral artery disease, MI, plaque) = 1 Age 65-74 = 1 Sex female = 1
> 1 consider anticoagulation therapy
2 anticoagulation is recommended
Explain HASBLED score
HTN = 1 Abnormal liver or renal function = 1 Stroke = 1 Bleeding = 2 Labile INR = 1 Elderly = 1 Drugs - NSAIDS, alcohol = 1
What anticoagulation is used for thromboembolic prophylaxis in patients with AF
Warfarin - inhibits vitamin K dependent synthesis of clotting factors *INR monitoring, mechanical valve, moderate/severe mitral stenosis
Dabigatran - thrombin inhibitor
Rivaroxaban - factor Xa inhibitor
Apixaban - factor Xa inhibitor
List scoring systems used in a patient with AF
CHA2DS2VASC
HASBLED*
HEMORR2HAGES*
*bleeding risk
Define the Sokolow-Lyon voltage criteria for LVH
S wave in V1 + R wave in V5/6 = >35 mm or 3.5 large squares