Rheobase - Study guides, Class notes & Summaries

CCDS IBHRE Exam with Verified Answers Graded A+ 1. Rheobase the lowest point on a strength du- ration curve at an infinitely long pulse duration 2. Chronaxie time the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration 3. Charge (formula) Charge= I(current) x T(time) 4. Furman's formula Energy(microjoules)= I(cur- rent)xV(voltage)

Rheobase - the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - Charge= I(current) x T(time) Furman's formula - Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Functional Refractory P...

IBHRE Review Test Questions and Answers 100% Solved AV Node Reentry Tachycardia (AVNRT) - accounts for ~60% of arrhythmias presenting as SVT or paroxysmal atrial tachycardia (PAT) - affects all age groups and genders equally - no correlation with heart disease - heart rate 150-250 bpm, palpitations, light-headedness, near-syncope, narrow QRS complex rheobase lowest point on a strength duration curve at an infinitely long pulse duration; for cardiac pacing, the rheobase is usually reac...

Rheobase correct answer: the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time correct answer: the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) correct answer: Charge= I(current) x T(time) Furman's formula correct answer: Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula correct answer: Voltage(electromotive force)= I(current/flow of...

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CCDS IBHRE Questions with solutions 100% solved Rheobase the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) Charge= I(current) x T(time) Furman's formula Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flo...

IBHRE Study Material: GTP Trivia Questions and Answers 100% Solved Most common form of SVT AVNRT AVNRT Characteristics 1. prolonged PR interval in the beat that starts reentry 2. HR: 150- 250 bpm 3. neck pounding, palpitations, light-headiness, near-syncope 4. narrow QRS 5. abrupt onset and termination of episodes 6. more common in women 7. frequently presents after age 20 rheobase the lowest point on a strength-duration curve at an infinitely long pulse duration chronaxie time pulse...

AV Node Reentry Tachycardia (AVNRT) correct answer: - accounts for ~60% of arrhythmias presenting as SVT or paroxysmal atrial tachycardia (PAT) - affects all age groups and genders equally - no correlation with heart disease - heart rate 150-250 bpm, palpitations, light-headedness, near-syncope, narrow QRS complex rheobase correct answer: lowest point on a strength duration curve at an infinitely long pulse duration; for cardiac pacing, the rheobase is usually reached between 1-2ms ch...

Rheobase correct answersthe lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time correct answersthe pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) correct answersCharge= I(current) x T(time) Energy (formula) correct answersEnergy(microjoules)= I(current)xVxT Functional Refractory Period correct answersthe coupling interval which first results in a measurable degree of del...

CRM IBHRE Questions and Answers 100% Solved Rheobase the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) Charge= I(current) x T(time) Energy (formula) Energy(microjoules)= I(current)xVxT Functional Refractory Period the coupling interval which first results in a measurable degree of delay in impulse conduction Effe...