Ibhre 4 - Study guides, Class notes & Summaries

IBHRE EXAM TEST IBHRE EXAM TEST WITH GUARANTEED ACCURATE ANSWERS Lithium iodine battery V? - Accurate Answer2.8V- not used for ICDs due to low peak power. Qmr Lithium Iodine/ silver V? - Accurate Answer3.2V Qhr- used for ICDS Which is an example of a closed loop sensor? - Accurate Answermyocardial contractility and O2 stat Primary Sensor - Accurate Answerdetects changes in normal physiologic responses Secondary - Accurate Answerdetects internal changes from exercise- QT MV pH ...

IBHRE Exam with Correct Answers Class I Drugs - Answer-Sodium Channel blockers (Phase 0) Class II Drugs - Answer-Beta blockers (SA/AV Node) Class III Drugs - Answer-Potassium Channel blockers (Phase 3) Class IV Drugs - Answer-Calcium Channel Blockers (Phase 2) Class V Drugs - Answer-Digitalis (SA + AV Nodes) What is the most posterior structure of the heart? - Answer-LA On an EKG, what structure is always negative? - Answer-AVN Lead I: + aVF: + - Answer-normal axis deviati...

Random IBHRE Questions and Answers 100% Solved Triggered is associated with digitalis toxicity or elevated interventricular Ca++ levels delayed After depolarization is a mechanism that causes triggered arrhythmias DAD - delayed after depolarization is associated with MI, reperfusion injury, RVOT VT and some A arrhythmias EAD - early after depol is associated with polymorphic VT and VT torsades A signal is what phase in AP phase 0 H signal is what phase in AP between AVN depol & purkinj...

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...

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...

IBHRE Test Questions and Answers 100% Solved Functional Refractory Period (FRP) the coupling interval which first results in a measurable degree of delay in impulse conduction effective refractory period the longest coupling interval to be associated with block resting (transmembrane) potential the voltage difference between the inside and outside of the cell fiber (negative inside cell) action potential the cellular characteristics of depolarization and repolarization. Consists of 5 ...

IBHRE Exam Questions with Complete Solutions 100% Verified Lithium iodine battery V? - Correct Answer 2.8V- not used for ICDs due to low peak power. Qmr Lithium Iodine/ silver V? - Correct Answer 3.2V Qhr- used for ICDS Which is an example of a closed loop sensor? - Correct Answer myocardial contractility and O2 stat Primary Sensor - Correct Answer detects changes in normal physiologic responses Secondary - Correct Answer detects internal changes from exercise- QT MV pH Tertiary ...

CCDS IBHRE EXAM LATEST UPDATE 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 ...

IBHRE Exam Questions and Answers Lithium iodine battery V? - Answer-2.8V- not used for ICDs due to low peak power. Qmr Lithium Iodine/ silver V? - Answer-3.2V Qhr- used for ICDS Which is an example of a closed loop sensor? - Answer-myocardial contractility and O2 stat Primary Sensor - Answer-detects changes in normal physiologic responses Secondary - Answer-detects internal changes from exercise- QT MV pH Tertiary - Answer-detects changes as a result of exercise- piezo acceler...

IBHRE Exam with Complete Solutions ICD Battery Types 1. Li/SVO: Lithium/Silver-Vanadium Oxide (1st gen.) 2. Lithium/Manganese Dioxide (2 manufacturers) 3. Lithium/Silver-Vanadium Oxide-Carbon Monofluoride (2 manufacturers -MDT) Capacitor Types -Aluminum Electrolytic -Tantalum 5 Phases of Cardiac Action Potential *Phase 0: influx of Na+ (depolarization - conduction velocity) *Phase 1: transient efflux of K+ (how quickly the cell can be depolarized again) *Phase 2: influx of Ca 2+ & Na+ ...