Pulse oximeters were originally popularized in operating rooms and anesthesia rooms in hospitals, but these oximeters used in the acute phase are of the placement type, or not only pulse oximeters, but used to simultaneously measure ECG and Comprehensive biological monitor for other important vital signs.

At the same time, in the resuscitation room and the subacute period after the operation, in addition to the placement type, the telemeter and the hand-held instrument for monitoring purposes are also fixed at the bedside for use. These are used for the purpose of warning devices for notifying sudden deterioration of symptoms. On the other hand, small portable pulse oximeters are used not only in hospitals, but also outside hospitals.

The following describes the use of small portable pulse oximeter.

1. Hospital ward

Especially in the respiratory and circulatory wards nurses are widely used. The biggest use is to check the vital signs of hospitalized patients. In addition to pulse, body temperature, blood pressure and respiration, SpO2 is used as the fifth vital sign, and pulse oximeter is used to grasp the status of hospitalized patients in the morning, day and night.

2. Hospital outpatient

It is mainly used in the department of respiratory organs. However, as a blood test screening, a pulse oximeter must be used first. It varies from physician to physician, but as long as the patient is suspected of respiratory diseases, the first thing to do is to measure SpO2 with a pulse oximeter, and grasp the patient’s basic SpO2 value in advance, as a reference data when symptoms worsen.

3. Hospital respiratory function examination room and rehabilitation room

Pulse oximeters are widely used in inspections and assessments such as respiratory function tests and walking tests. Depending on the hospital, either an examination technician or a physical therapist. At the same time, in the risk management during rehabilitation, the physical therapist is used to confirm the degree of SpO2 decrease and pulse rate increase at any time.

4. Emergency vehicles

In 1991, Japan enacted a life-saving first aid bill, which allowed certain medical treatments to be implemented in ambulances and began to equip emergency vehicles with pulse oximeters.

5. Clinic (clinical physician)

Hypoxemia is not only the respiratory organs, but also the circulatory organs and nervous system. For the grasp of the condition, the differential diagnosis and the discrimination of the severity of the disease, especially for the judgment of transfer to a professional hospital, not only the respiratory organ internal medicine department, but also the general internal medicine department also use pulse oximeter. At the same time, as a necessity for home visits and medical treatments, portable pulse oximeters are usually used.

6. Home visit nursing station

Most of the patients receiving home visits are elderly. Even if respiratory diseases are not the main disease, most of them have some problems with their respiratory and circulatory organs. SpO2 measurement has been widely used among home nurses as a tool for finding patient problems.

7. Elderly health insurance facilities

Provide support for the self-reliance of the elderly in stable conditions. Pulse oximeters are also used in health facilities for the elderly with the goal of returning home. They are used to check the vital signs of entering patients, especially for nighttime attacks and day care. And facilities for respiratory rehabilitation.

8. Other

When the air pressure drops, the partial pressure of oxygen in the inhaled air will also drop, resulting in lower oxygen saturation. In order to prevent accidents caused by decreased oxygen saturation, pulse oximeters should be used when climbing in airplane cabins and high altitude areas. Air-traveling home oxygen therapy patients, airlines, plateau mountaineering teams, etc. generally use small portable pulse oximeters. In addition, in the sports field, pulse oximeters are used when training in high altitude areas, training in hypoxic rooms, etc.

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