IBHRE EXAM QUESTIONS WITH
VERIFIED ANSWERS
Class I Drugs - ANSWERSodium Channel blockers (Phase 0)
Class II Drugs - ANSWERBeta blockers (SA/AV Node)
Class III Drugs - ANSWERPotassium Channel blockers (Phase 3)
Class IV Drugs - ANSWERCalcium Channel Blockers (Phase 2)
Class V Drugs - ANSWERDigitalis (SA + AV Nodes)
What is the most posterior structure of the heart? - ANSWERLA
On an EKG, what structure is always negative? - ANSWERAVN
Lead I: + aVF: + - ANSWERnormal axis deviation
Lead I: + aVF: - - ANSWERleft axis deviation
Lead I: - aVF: + - ANSWERright axis deviation
Pneumonic for drug classes: - ANSWERSo Be Pot Cautious
NYHA Class 1 - ANSWERWalky talky
NYHA Class 2 - ANSWERsome SOB c stairs
NYHA Class 3 - ANSWERno stairs
NYHA Class 4 - ANSWERCan't walk due to SOB. LBBB due to remodeling qualifys.
LBBB = impulse originated from - ANSWERthe right
RBBB = impulse originated from - ANSWERthe left
With VT Mapping, look for the first focus of the V beat, not the: - ANSWERdirection
LBBB, V1= - ANSWERnegative (car indicators)
RBBB, V1 = - ANSWERpositive (car indicators)
, Apical VT will be negative in what leads? - ANSWERII, III, aVF
RVOT VT will be positive in what leads? - ANSWERII, III, aVF
Septal VT will be: - ANSWERpositive/negative
Precordial leads indicate anterior/posterior. If they're negative in VT: - ANSWERanterior
Precordial leads indicate anterior/posterior. If they're positive in VT: - ANSWERposterior
Delta waves, V1 = negative. Right/Left sided? - ANSWERright
Delta waves, V1 = positive. Right/Left sided? - ANSWERleft
Delta waves, anterior pathway if: - ANSWERII, III, aVF are positive
Delta waves, posterior pathway if: - ANSWERII, III, aVF are negative
Delta waves, anterior septal pathway if: - ANSWERnegative in V2-V6
Delta waves, posterior septal pathway if: - ANSWERpositive in V2-V6
BB Reentry VT - ANSWER- uses the AVN
- inverted P-waves
- ablate RBB
Reentrant VT (Scar) - ANSWER- does not use AVN
- Inverted P-waves
- Adenosine will have no effect
- VA dissociation is seen
V1 =
V2 =
V4 =
V5 = - ANSWERV1 = Atrium
V2 = AVN
V4 = CS
V5 = apex
What medication can be used to distinguish VT and SVT c aberrancy? -
ANSWERAdenosine
SVT with aberrancy resembles: - ANSWERtriphasic rsR' or a RBBB
Concentric = - ANSWERvia the AVN, from the middle out.
VERIFIED ANSWERS
Class I Drugs - ANSWERSodium Channel blockers (Phase 0)
Class II Drugs - ANSWERBeta blockers (SA/AV Node)
Class III Drugs - ANSWERPotassium Channel blockers (Phase 3)
Class IV Drugs - ANSWERCalcium Channel Blockers (Phase 2)
Class V Drugs - ANSWERDigitalis (SA + AV Nodes)
What is the most posterior structure of the heart? - ANSWERLA
On an EKG, what structure is always negative? - ANSWERAVN
Lead I: + aVF: + - ANSWERnormal axis deviation
Lead I: + aVF: - - ANSWERleft axis deviation
Lead I: - aVF: + - ANSWERright axis deviation
Pneumonic for drug classes: - ANSWERSo Be Pot Cautious
NYHA Class 1 - ANSWERWalky talky
NYHA Class 2 - ANSWERsome SOB c stairs
NYHA Class 3 - ANSWERno stairs
NYHA Class 4 - ANSWERCan't walk due to SOB. LBBB due to remodeling qualifys.
LBBB = impulse originated from - ANSWERthe right
RBBB = impulse originated from - ANSWERthe left
With VT Mapping, look for the first focus of the V beat, not the: - ANSWERdirection
LBBB, V1= - ANSWERnegative (car indicators)
RBBB, V1 = - ANSWERpositive (car indicators)
, Apical VT will be negative in what leads? - ANSWERII, III, aVF
RVOT VT will be positive in what leads? - ANSWERII, III, aVF
Septal VT will be: - ANSWERpositive/negative
Precordial leads indicate anterior/posterior. If they're negative in VT: - ANSWERanterior
Precordial leads indicate anterior/posterior. If they're positive in VT: - ANSWERposterior
Delta waves, V1 = negative. Right/Left sided? - ANSWERright
Delta waves, V1 = positive. Right/Left sided? - ANSWERleft
Delta waves, anterior pathway if: - ANSWERII, III, aVF are positive
Delta waves, posterior pathway if: - ANSWERII, III, aVF are negative
Delta waves, anterior septal pathway if: - ANSWERnegative in V2-V6
Delta waves, posterior septal pathway if: - ANSWERpositive in V2-V6
BB Reentry VT - ANSWER- uses the AVN
- inverted P-waves
- ablate RBB
Reentrant VT (Scar) - ANSWER- does not use AVN
- Inverted P-waves
- Adenosine will have no effect
- VA dissociation is seen
V1 =
V2 =
V4 =
V5 = - ANSWERV1 = Atrium
V2 = AVN
V4 = CS
V5 = apex
What medication can be used to distinguish VT and SVT c aberrancy? -
ANSWERAdenosine
SVT with aberrancy resembles: - ANSWERtriphasic rsR' or a RBBB
Concentric = - ANSWERvia the AVN, from the middle out.
