Origins
As used in Ayurvedic medicine and traditional Chinese medicine (TCM), the techniques of pulse diagnosis have been developed over thousands of years, as these two systems of medicine are the world’s oldest.
Acupuncture, a branch of TCM, has long relied on pulse diagnosis as a main tool to determine the course of treatment. In Western medicine, every time a doctor checks the pulse of a patient and listens to the heartbeat with a stethoscope, the doctor is practicing a form of pulse diagnosis.
Benefits
Pulse diagnosis is a quick, inexpensive, and non-invasive diagnostic tool. When performed by trained professionals, it can be an effective means for determining the health conditions of patients.
Description
In conventional Western medicine, doctors check the pulse of patients by placing their hands on the wrist and by listening to the pulse at various points on the body with a stethoscope.
Doctors check for abnormalities in rhythm and rate that may indicate heart problems, internal bleeding, and fever. Measuring blood pressure is essentially another pulse diagnosis, which indicates hypertension, circulatory conditions, and other problems.
In older healing systems, such as Ayurveda and TCM, doctors check the pulse just as Western doctors do, but they use a very intricate system of pulse measurements, and they rely on careful observations instead of diagnostic tools. Pulse diagnosis is considered as much an art as a science, and it takes physicians many years of training to become experts.
Doctors skilled in pulse diagnosis can often find health problems with a quick touch. Some published observations have documented the effectiveness of pulse diagnosis by trained experts, comparing their diagnoses with the diagnoses with modern technology.
In Ayurvedic medicine, pulse diagnosis is called nadi parkiksha. The principle measurement of pulse is taken at the radial artery, a blood vessel that is located on the inside of the wrist.
Ayurvedic doctors use three fingers to feel the pulse, and particular conditions are indicated depending on the pulse characteristics that each finger feels. Doctors note heart rate, counting how many beats occur per minute and per breathing cycle of the patient. Doctors also take deep and shallow readings of the pulse, pressing hard or gently on the artery.
Ayurvedic doctors believe that the pulse can indicate how prana, or life energy, is flowing through a patient’s system, and can indicate the condition of internal organs. Doctors check the pulse on both wrists, because each side of the body gives different indications.
Ayurvedic physicians use other diagnostic tools in conjunction with pulse analysis, including interviewing the patient and closely observing the physical characteristics of the tongue, voice, skin, eyes, appearance, urine, and stool, in addition to utilizing conventional diagnostic methods.
Pulse diagnosis in traditional Chinese medicine (including acupuncture) shares some similarities with Ayurvedic medicine. In TCM, pulse diagnosis is used to check the condition of the blood and of qi (chi), which is the invisible life energy that travels in channels (meridians) throughout the body.
Using pulse diagnosis, physicians determine the condition of the internal organs, and describe conditions according to yin and yang (cold or hot, empty or full, weak or strong, etc.). Pulse diagnosis tells acupuncturists where there are problems with the flow of energy in the body.
In TCM, there are several pulse diagnosis techniques, but the one most commonly used is checking the radial arteries on each wrist. Each wrist has six positions that are checked, and the 12 positions on both wrists correspond to the 12 internal organs. At each position, there are three depths that are checked. In all, the pulse can have 36 different qualities.
Some of the observations noted during pulse diagnosis include the position of the artery, whether it is deep or shallow, the hardness or softness of the artery, the diameter of the blood vessel, the rate and strength of the pulse, and the rhythm of the heartbeat. TCM practitioners may take the pulse at other points on the body, frequently including the carotid artery at the base of the neck.
In TCM and acupuncture, pulse diagnosis is used in conjunction with other diagnostic techniques. TCM doctors closely interview patients, and pay attention to seeing, hearing, and smelling the patient.
TCM practitioners also observe the tongue, and palpate (touch) parts of the body to check for swelling, pain, temperature, moisture, and other characteristics. TCM practitioners may also use conventional diagnostic techniques such as blood tests, scans, and others.
Preparation
Pulse diagnosis should be performed on patients under normal conditions to insure accuracy. The pulse should not be diagnosed after exercise, physical exertion, bathing, massage, sex, eating or drinking, while the patient is very hungry, or in a room where the temperature is very hot or cold.
Precautions
Pulse diagnosis can be a quick and inexpensive means of diagnosis, but it should be performed by a trained specialist to be most effective. Pulse diagnosis is best used in conjunction with other diagnostic techniques, including conventional ones. For patients with severe, chronic, or undetermined conditions, getting more than one diagnosis or opinion is recommended.
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