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cardio9 vitals

cardio 9 vitals

Target heart rate formula: a method for obtaining an appropriate demand on the heart during exercise.
The age-adjusted maximum heart rate is determined by subtracting the patientʼs age from 220.
The training heart rate is determined by multiplying the age-adjusted maximum heart rate by the appropriate percentage of intensity that the patient should maintain during exercise.
Normal training intensity ranges from 60-90% of the age-adjusted maximum heart rate.
A patient with cardiac pathology must have exercise intensity determined from the results of a stress test.
The Karvonen formula is a method to obtain an appropriate range for training heart rate.
Karvonen formula 1 The maximum heart rate is obtained . by an exercise stress test (or the age-adjusted maximum heart rate) and the resting heart rate is subtracted from it. This number is termed the heart rate reserve
Karvonen formula 2 The heart rate reserve is multiplied by both ends of the prescribed range (e.g., HR reserve x 60% and HR reserve x 80%). The resting heart rate is then added to each of the two numbers to identify the upper and lower limits of the prescribed target heart rate.
Carotid pulse location Anterior to sternocleidomastoid
Brachial pulse location Medial aspect of arm midway between shoulder and elbow
Radial pulse location At wrist, lateral to flexor carpi radialis tendon
Ulnar pulse location At wrist, between flexor digitorum superficialis and flexor carpi ulnaris tendons
Femoral pulse location In femoral triangle (sartorius, adductor longus, and inguinal ligament)
Popliteal pulse location Posterior aspect of knee (deep and hard to palpate)
Posterior tibial pulse location Posterior aspect of medial malleolus
Dorsalis pedis pulse location Between first and second metatarsal bones on superior aspect of the foot
Heart rate indirectly measures the rate of contraction of the left ventricle through a peripheral pulse site.
Normal heart rate values for Infant: 100 to 130 bpm
Normal heart rate values for Child: 80 to 100 bpm
Normal heart rate values for Adult: 60 to 100 bpm
Pulse sites for measurement include: brachial, carotid, dorsal pedal, femoral, popliteal, posterior tibial, radial, and temporal pulses. The carotid and radial pulse sites are the most common sites for measuring a patientʼs pulse rate.
A regular and strong heart beat may be taken for 15 seconds and multiplied by four to obtain the per minute heart rate
If there is any form of irregularity the pulse should be taken for a full 60 seconds the pulse should be taken for a full 60 seconds
Use the index and middle fingers to measure the heart rate, never the thumb
Assess and document the rhythm as regular or irregular the strength or amplitude of the pulse as strong, medium or weak
An alternate method to obtain heart rate is to auscultate over the apical pulse for one minute
S1 “lub” mitral and tricuspid valves closing at the onset of systole
S2 “dub” aortic and pulmonic valves closing at the onset of diastole
S3 (ventricular gallop) abnormal in older adults; noncompliant left ventricle; may be associated with congestive heart failure
S4 Pathological sound of vibration of the ventricular wall with ventricular filling and atrial contraction; may be associated with hypertension, stenosis, hypertensive heart disease or myocardial infarction
Created by: micah10



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