Rua de Barreiros, 74,
Rua do Monte de S. Bento, lote 11 e 12,
90% of orders delivered in under 24H!
Your shopping cart is empty!
Price With Taxes
Para encomendas a
partir de 75 €
Devoluções e garantias
A qualquer dia e a
Trocamos produtos para
além de 14 dias
The finger oximeter is a medical device that indirectly assesses the amount of oxygen in the blood and the heart rate.
It can also be called a Saturimeter.
It measures hemoglobin arterial saturation in a simple, reliable, non-evasive and continuous way, which is a crucial physiological parameter of the respiratory system.
Comed oximentro is particularly convenient because it is non-invasive, good value and with extremely reliable results!
To control oxygenation over time.
In physiotherapy, for example, it is used for the assessment and / or conduct of respiratory physiotherapy for successful weaning from mechanical ventilation, tracheostomy decannulation (post-weaning) and clinical-functional monitoring of other cardio-respiratory disorders.
How to obtain more reliable readings on the oximeter?
The most accurate readings are related to the blood flowing to the hand or finger to which the device is attached.
So for a better reading:
At what age can it be used?
Can be used by children from 3 years old.
What is the advantage of having an oximeter at home?
Many respiratory diseases can lead to a decrease in hemoglobin saturation values, hence it is a very useful device for the control of these values and preventive detection of these diseases.
What normal values are expected?
The value of oxygen saturation in blood, in humans, is between 95-99%.
For smokers, these figures are lower.
And when the oxygen saturation in the blood is less than 90%?
An oxygen saturation below 90% implies hypoxia that can be caused, among other causes, by anemia.
What symptom, observed on the skin, may indicate low oxygen saturation?
One of the symptoms of low blood oxygen saturation is cyanosis.
Oximetry is an exam capable of measuring blood oxygen saturation, that is, the percentage of oxygen being transported in the bloodstream. This measure is usually necessary when diseases that impair or interfere with the functioning of the lungs are suspected, such as asthma, emphysema, pneumonia, lung cancer, pulmonary congestion or neurological diseases, for example.
Generally, oximetry above 90% indicates good blood oxygenation, however, it is necessary for the doctor to evaluate each case. A low blood oxygenation rate may indicate the need for treatments such as a catheter or oxygen masks, and may indicate a life-threatening condition if proper treatment is not done. Understand what are the consequences of lack of oxygen in the blood.
There are two ways to take this exam:
1. Pulse oximeter (or finger)
It is the most used way to measure the amount of oxygen in the blood, where small devices are used, called pulse oximeters, that can do this measurement when placed on a finger or on the lobe of the ear.
The main advantage of this measure is the fact that it is not invasive, as there is no need to sting or collect blood. In addition to oximetry, this device may also be able to measure other vital data, such as the amount of heartbeat and respiratory rate, for example.
How it works: The pulse oximeter has a light sensor that captures the amount of oxygen that passes in the blood under the place where the test is being done and, in a few seconds, indicates the value. These sensors take immediate, regular measurements and are designed for use on the fingers, toes or ears.
Pulse oximetry is widely used by doctors and other health professionals during clinical evaluation, especially in cases of diseases that cause difficulty in breathing, such as lung, heart and neurological diseases, or during anesthesia.
The oximeter can be purchased at medical or hospital supply stores, and is available in different brands and prices. It is recommended to obtain reliable brands, to avoid measurement errors.
2. Arterial blood gas analysis
Unlike pulse oximetry, arterial blood gas analysis is an invasive way of measuring the rate of oxygen in the blood, as it is done by collecting blood into a syringe, and for this a needle stick is needed to access the blood vessel that carries arterial blood. For this reason, this type of examination is less frequent than pulse oximetry.
The advantage of arterial blood gases is a more accurate measure of oxygen saturation levels in the blood, in addition to being able to provide other important measures, such as the amount of carbon dioxide, pH or amount of acids and bicarbonate in the blood, for example.
How it works: it is necessary to perform an arterial blood collection and then this sample is taken to be measured in a specific device in the laboratory. The blood vessels most used for this type of measurement are the radial artery, in the wrist, or femoral, in the groin, but others can also be used.
This type of measurement is usually used only in cases where the patient needs to be monitored continuously or more accurately, which is more common in situations such as major surgery, severe heart disease, arrhythmias, generalized infection, sudden changes in pressure blood pressure or in cases of respiratory failure, for example. Learn what respiratory failure is and how it can decrease blood oxygenation.
Normal values of oximetry
A healthy person, with adequate oxygenation of the body, usually has an oxygen saturation above 95%, however, it is not uncommon that due to mild conditions, such as colds or flu, the saturation is not between 90 and 95%, without cause for concern.
When saturation reaches values below 90%, it may indicate that blood oxygenation is deficient, which can arise in more serious diseases such as asthma, pneumonia, emphysema, heart failure or neurological diseases, for example.
In arterial blood gases, in addition to the measurement of oxygen saturation, partial oxygen pressure (Po2) is also evaluated, which must be between 80 and 100 mmHg.
In any case, the evaluation of the doctor or a health professional is always necessary, as other clinical data need to be evaluated in order to reach a conclusion about the cause and how the treatment should be done.
in your health
Subscribe to receive inspiration, ideas and news in your inbox.
Not a member?
Already have an account? You can
By completing profiles, we can ensure you get the best service