Actually, all blood pressures have distinct korotkoff sounds, (the true and proper way to auscultate blood pressures at any location) and they are not routinely auscultated as an apical heart tone and or carotid artery as checking for bruits, APMI, thrill etc.. Since the only way to obtain such sounds is increasing arterial obstruction and releasing pressure for flow. This is as well should not to be confused with systole, or diastole sounds such S1, S2 and definitely not to be confused with adventitious heart tones such murmurs, clicks or the gallops as you described.
Blood pressures should be taught with korotkoff sounds, as it was originally taught in the national curriculum even 25 years ago. That is part of the problem in EMS education, we have diluted down the EMT and Paramedic programs and assuming that one has to be specially trained to have an understanding of basic patient assessment skills. This is even routinely taught even at the LPN level. Let's teach it right the first time, so there will be no confusion when one increases their education level.
Thinking the ... "the hospitals will take their own anyway".. is true, however; it is the responsibility of the EMT, Paramedic or whatever level to obtain and maintain a set of vital signs. Critical ill, trauma patients, etc. should have at least vital signs obtained every 5 to 10 minutes if not more, dependent on the situation, so a trend can be obtained.
Yes, I definitely agree that after attempting a manual, one could attempt to obtain a palpated pressure, however; hopefully you should attempted using doppler prior to this last resort. (yes, EMS should carry dopplers on every unit). Palpated pressures do give a guessamation of what the systolic might be, and does not really reflect the resting arterial pressure in which is so important.
Blood pressures as well as all vital signs are a essential part of patient assessment tools, such named as vital, since they reflect the patients condition. Yes, they can difficult to obtain at periods, due to ambiance road noise, bumps, extrication tools, etc. Practice does make perfect, and practicing on every patient increases your skills and knowledge.
R/r 911
RN,CCRN, CEN, CCEMT/P