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Heart
Sounds and Surfaces
| Question | Answer |
|---|---|
| Wide Splitting | Delay RV emptying - PS, RBBB |
| Fixed Splitting | ASD |
| Paradoxical Splitting | Pulmonic before aortic - Delay LV emptying. AS, LBBB. Inspiration eliminates split |
| Valsalva, standing | decreases intensity of most murmurs |
| Valsalva, standing increases ________ | hypertrophic cardiomyopathy murmur |
| mechanism of valsalva | decrease VR |
| Mechanism of hand grip | increase systemic vascular resistance |
| Hand grip increases | MR, AR, VSD |
| Hand grip decreases | AS, hypertrophic CM |
| Rapid squatting mechanism | increased VR, Preload, afterload (with prolonged squat) |
| Squatting decreases | Hypertrophic CM |
| Squatting increases | AS, MVP |
| Holosystolic, high-pitched, blowing murmur | MR/TR |
| Hlosystolic murmur, loudest at apex, radiating to axilla | MR |
| Enhance MR murmurs | increase TPR - squatting, hand grip |
| Enhance TR murmur | Increase VR (inspiration) |
| Crescendo-decrescendo systolic | AS |
| AS murmur loudest at _________, radiates to ____________- | Base. Carotids |
| Holosystolic, harsh murmur, loudest at tricuspid, accentuated with hand grip | VSD |
| late systolic crescendo w/ midsystolic click, best at apex | MVP (most frequent valvular lesion) |
| Diastolic blowing murmur | AR |
| AR clinical signs | head bobbing, bounding pulses |
| Rumbling, late diastolic murmur, following opening snap | MS |
| Enhance MS sounds | Increase LA return (expiration) |
| Continuous, machine-like murmur | PDA |
| PDA best heard at | Left infraclavicular area |
| Ant. surface | RV |
| Post. Surface/Base | LA |
| Inf. Surface / diaphragmatic | LV, RV |
| Right pulmonary | RA |
| Left Pulmonary Surface | LV |
| R. border | RA |
| L. Border | LV |
| Inf. border | LV, RV |
| Sup. Border | LA, RA, Great vessels |
| LCX supplies | Lateral and posterior walls of LV |
| LAD supplies | Ant. 2/3 of IV septum, ant. papillary m., ant. surface of LV |
| PDA supplies | post. 1/3 of IV septum, post and inf. walls of RV and LV |
| Nodes are supplied by | RCA in right dominant, LCX in left dominant |