Understanding Nadi

Pulse

Nadi is the dominant blood flow and can be felt in various places on the body. Nadi is an indicator of circulatory status. Circulation is a means by which cells receive nutrients and remove metabolic waste dihasilkandari. In order for cells to function normally, there should be a continuous flow of blood and distributed in accordance with the volume of blood to the cells that need nutrients.

Physiology and Regulation

Blood flow which runs through the body in a continuous circuit. Electrical impulses from the sinoatrial node (AV) runs through the heart muscle menstimulasikontraksi jantunguntuk. At each contraction of the ventricles, the blood into the aorta about 60 to 70 ml (volume sekuncup). At each ejection volume sekuncup, berdistensi aortic wall, creating a pulse wave that is quickly running through the end of the artery. Pulse wave to move 15 times faster through the aorta and 100 times faster through smaller arteries than diejeksikan blood volume (Guyton, 1991). At the time the pulse reaches parifer artery, the artery can be felt by mempalpasi lightly at the base of the bone or muscle. Nadi is the dominant blood flow in peripheral arteries can be palpated. The number of pulses that occurred within one minute is the pulse velocity.

Volume of blood pumped by the heart in one minute is the cardiac output, resulting from the frequency of the heart to pump 5000 ml of blood per minute. Changes in heart frequency or volume sekuncup not always change cardiac output or total darh in the arteries. For example, if the number of individual heart beats 70 times a minute and 70 ml of bud volume, cardiac output was 4900 ml per minute. What happens when the heart frequency drops to 60 beats per minute and the volume increased by 85 ml sekuncup?

Calculating Rainfall Heart

Volume X pulse sekuncup = Rainfall heart

70 beats / min X 70 ml / pulse = 4.9 L / min

60 beats / min X 85 ml / pulse = 5.1 L / min

Mechanical factors, neural and chemical regulates heart contraction strength and volume to taste. But if mechanical factors, neural or chemical sekuncup can not change the volume, frequency change of heart will lead to changes in blood pressure. If the heart frequency increases, the time required untukmengisi heart become smaller. If the frequency increases without a change of heart on sekuncup volume, blood pressure decreases. If the heart frequency slowly, filling time and increased blood pressure increases. Inability to respond to increased blood pressure and decrease heart frequency deviation can indicate health and reported to the doctor.

The cause of the slow pulse, rapid or irregular normally can change cardiac output. Nurses assess the heart's ability to meet the needs of the body tissue of nutrients in a way mempalpasi or peripheral arteries using a stethoscope to hear the sound of the heart (apical frequency).

Assessment Nadi

Pulse frequency can be assessed on each artery, but the radial artery and the carotid artery can be easily palpated on the pulse parifer. At the time of the client condition suddenly worsened, the carotid is the best area to find a rapid pulse. The heart will deliver blood through the carotid artery continuously to the brain. When cardiac output decreased significantly, peripheral artery will weaken and it is difficult to be touched.

The radial and apical pulse is the most frequently used to assess the frequency of the pulse (fig. 32-10). These places are used by individuals to monitor their own heart frequency (eg athletes, individuals who received the heart medication, and clients who start an exercise program set). If the radial pulse at normal pergelangantidak or intermittent due to dysrhythmias, or if the arteries that can not be touched because the bandage, plaster or other obstruction, which is analyzed is the apical pulse. At the time of clients using medications that affect heart frequency, apical pulse can provide a more accurate assessment of cardiac function. Apical pulse is the best place to assess the pulse of a baby or small child because the pulse in the peripheral arteries and it is difficult to accurately palpated.

Assessment of apical other places such as the brachial or femoral artery does not matter if vital signs are checked with the routine. Other peripheral pulse reviewed if a complete physical examination has been carried out, if surgery or medication interfere with blood flow to bagiantubuh, or if there is an indication of clinical disorders of peripheral blood flow