CVS Flashcards
A pregnant lady came with mitral stenosis and atrial fibrillation what will you give?
IV heparin
Myxoid degeneration is most likely associated with?
Mitral Valve prolapse
Women with mitral stenosis at 28 weeks of gestation, her dyspnea worsens due to?
Pulmonary HTN
Maximum entry of calcium during ventricular myocytes depolarisation shown as?
ST segment
U wave in ECG is due to?
slow repolarisation of papillary muscles
AV nodal delay is caused by which phase of cardiac cycle?
Ventricular filling
54 years old male, palpitations and light headedness, heart rate 200bpm, bp75/40mmHg, what adjustment occurred in cardiac cycle
Systolic time has decreased proportionately more than the diastolic time
The right bundle branch is supplied by?
Left coronary artery
Tall QRS complex in lead II on ECG shows?
Hypertrophied ventricle
Increase in JVP due to increase in?
Resistance
Absent P waves on ECG occurs in?
Nodal Rhythm
What will occur in the myocardium of a patient with MI who is being treated with fibrinolytic agents?
Free Radical Formation
Plateau phase of ventricles on ECG shown by?
ST segment
ECG recording is done during?
partly depolarisation partly repolarisation
Aortic insufficiency is seen in which disease?
Ankylosing spondylitis
A 25yrs old female patient with SOB on exertion, palpitation, and atypical chest pain. O/E BP was 130/90mmHg, pulse 90bpm and a grade 2 systolic murmur in the 4th intercostal space with normal ECG and CXR, diagnosis?
Normal Heart
23yrs old, stabbed in bar fight, blade enters at 5th intercostal space, just lateral to sternum, pierces depth of 4cm, structure damaged?
Pericardium
Artery most likely to be damaged in close proximity of phrenic nerve?
pericardiophrenic artery
Cardiac plexus in the superior mediastinum receives input from?
left vagus
Epicardium gets its blood supply from?
coronary artery
RBB is supplied by?
LCA
If RCA gets blocked after giving marginal artery branch, which portion of the heart will be affected?
AV node
Blood supply of posterior surface of heart is supplied by?
RCA
What is the blood supply of heart?
Two coronary, auricular, atrioventricular, septal
In inferior wall MI which artery is likely to be blocked?
right marginal
60 years old male with IHD with palpitation, syncope, dyspnea and sinking of heart. QRS rate 140 to 200 per minute. best treatment?
Lidocaine
ECG of patient shows 3:1 ratio of P to QRS. diagnosis?
Mobitz 2
During inspiration JVP drops due to?
increase venous return
A direct consequence of severe magnesium deficiency would be?
Hypokalemia
Wave of depolarisation from endocardium to epicardium represented on ECG as?
QRS complex
Normal length of PR interval and QRS complex?
PR interval 120-200msec QRS<100msec
Maximum flow pressure in coronary vessels occurs at?
Beginning of diastole
Aortic valve opens in left ventricle at what pressure?
80mmHg
The maximum left ventricular pressure is during? how much in healthy adult?
rapid ejection phase 120mmHg
The audible heart sounds lie in the range of?
40-500 cycles per second
During exercise there is decreased blood flow to?
Kidneys > splanchnic
Patient with HTN, started on ACE inhibitors, BP controlled but complains of dizziness. Most likely cause of decreased blood supply to brain is?
Decreased sympathetic response
Which event occurs just before aortic valve opening?
beginning of systole
During which phase calcium will be entering ventricular cells via slow channels?
Rapid ejection phase
Patient with murmur, QRS complex +180 axis deviation, diagnosis?
RBBB
What is increased in AR?
Preload and EDV
75yrs old hx of stable angina presents with SOB, creat 10, urea 200, auscultation reveal a pericardial friction rub and signs of effusion, diagnosis?
Uremic pericarditis
Patient with pericardial frictional rub with deranged RFT, urea was increased, creatinine was 8, cause of pericarditis?
Fibrinous
Best marker for monitoring the heart in patient with ESRD?
Trop I
Superificial cardiac plexus is made of?
left vagus
Infarction of apex of heart, vessel thrombosed will be?
LAD
Drug to prevent tachy-disarrythmias in patient with Wolf-parkinson-white syndrome?
Droperidol
Patient with SVT should be given?
Adenosine > Verapamil
A woman usually feels tachycardia during exercise and stress, which settles down at rest, cause?
Sinus Tachycardia
In ventricular ECG, changes appeared and ventricles beat slower than atria, diagnosis?
2nd degree heart block
Atrial fibrillation leads to?
embolus
Massive transfusions cause? Repeated or multiple transfusions cause?
hypocalcemia Hemosiderosis/Hemochromatosis or hyperkalemia
Onset of ventricular systole coincides with the peak of?
R wave in ECG
Most important cause of low amplitude QRS complex?
Old MI
What is higher in peripheral arteries than in the aorta?
pulse pressure
Pressure of right ventricle which opens the pulmonary valve?
8mmHg