CARDIOLOGY BOARDS ABIM TEST UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS

CARDIOLOGY BOARDS ABIM TEST UPDATED ACTUAL EXAM QUESTIONS CORRECT
ANSWERS GRADED A PLUS
Cardiology Boards ABIM TEST 2026/2027 Questions
and Answers Verified Solutions Latest Update

Question:
Gene nkx2.5 most associated with?

Answer:
autosomal dominant ASD and AV block (2 things, in the middle)



Question:
Heart defect with holt Oran? Gene?

Answer:
ASD; tbx5 (Holt! He's got tb! and it will progress!) Progressive heart block



Question:
Constrictive vs restrictive physiology

Answer:
* Constrictive = equalization of pressures in all 4 chambers (consistent) (consistent pressures,
changes with respiration, bounce (C looks like a ball) * RVEDP=lvedp * Ra = wedge *septal
bounce *marked changes in mitral velocity with inspiration and expiration Restrictive: left sided
pressures higher than right sided pressures. Large atria. LVEDP>/=5 above RVEDP, LVEDP = LA
and > RA pressure and RVEDP. RVSP >50 (constrictive < 50 mmHg). PVR higher in restrictive.
Systolic pressure should be mostly normal in both though.



Question:
What defect does retinoic acid cause?

Answer:
TOF (taussig had bad acne)

,Question:
What drugs cause malignant hyperthermia? Mechanism?

Answer:
succinylcholine (Sucs is depolarizing, so causes this, other neuromuscular blockers like roc and vec
are non-depolarizing so do not) Also inhaled anesthetics (fluoranes) the flu succs and causes fever
Block magnesium regulatory effect on SR leading to increased intracellular calcium



Question:
Balloon sizes for pulmonary vs aortic valves vs mitral vs tricuspid. Pulmonary artery?

Answer:
tricuspid = 150%, pulmonary (120% to start, 170% if double balloon), mitral ((height in
cm/10)+10), and aortic valve (80-90% to start stop at 100%) Pulmonary artery 2.5-3.5 diameter of
stenosis, but no more than 2X normal diameter Go down by 10's starting at 150



Question:
Gene for alagilles? Cardiac and facial findings?

Answer:
Jag 1 (ag is in alagilles) Triangular face, prominent forehead TOF, branch PS



Question:
How do you know if wide complex on EP study?

Answer:
Takes up a whole box



Question:
How do you know rate on EP study?

Answer:
300, 150, 100, 75, 60, 50 x 2

,Question:
Right vs left sided pathway?

Answer:
Once in tachycardia, look at CS catheter and see where earliest depolarization is (1,2 is leftward) so
if 1,2 depolarizes earlier it is left sided



Question:
EP catheter names and locations HBE - HRA - His: CS: CS prox: CS distal:

Answer:
HBE - his bundle electrogram HRA - high right atrium His: anterior (his junk is anterior) CS:
posterior CS prox: R CS distal: L



Question:
Cardiac and dysmorphic features of noonan syndrome, gene What other disease has similar feature
and same gene?

Answer:
Multi- level PS (not ammenable to cath) and HCM. Short, webbed neck. Male turners. PTPN11
mutation in RAS/MAP pathway. Autosomal dominant. Need some blue raz and a map in the high
noon desert. PTP is multi level P's and N for noonan LEOPARD syndrome



Question:
What is the most common coronary anomaly with D-TGA? TOF?

Answer:
TGA: Circ off of the right - a circling problem TOF: LAD off the right - an anterior problem



Question:
Most patients with TOF have fibrous continuity between which valves?

, Answer:
Aortic and tricuspid



Question:
Best anatomic markers of the atria?

Answer:
Valve of fossa ovalis for left (septum primum) [because the PFO is designed to dump to the left],
limbus of fossa ovalis of right (septum secundum), followed by ostia of IVC for right atrium. Valve
- left; also see septum premium attachments Limb - right (right handed and 2 of them), also see
septum secundum attachments



Question:
Most reliable marker for RV? Tricuspid valve?

Answer:
Displacement of tricuspid valve lower is a marker of both



Question:
What pushes the oxygen dissociation curve to the left? What does that mean?

Answer:
Increased o2 affinity shift to left (low): Alkalosis (low H+), low pCO2, lower temperature, lower
2-3-dpg



Question:
Coronaries supply- Anterolateral pap muscle: Posteromedial pap muscle:

Answer:
Anterolateral pap muscle: dual supply LAD and circ Posteromedial pap muscle: obtuse marginal



Question: