Skip to main content

Spirometers, Peak Flow Meters, and Lung Function


A spirometer is a device that is used to test lung function by measuring air inhalation and exhalation. This kind of testing is invaluable in, among other things, disease screening, health examinations, and epidemiological investigation.

The three most common tests in spirometry (mentioned above) are the FVC test, the VC test, and the MVV test. Looking first at FVC, this test focuses on forced exhalation and inhalation and measures the changes in the volume and flow of breath under these conditions. This is one of the most important measures in distinguishing between conditions of the lungs. VC testing then measures these changes in a relaxed state i.e. the subject need not force either inhalation or exhalation, but rather try and breathe normally. The aim of this testing is to reflect the potential capacity of the respiratory function. Lastly, MVV testing is a load test that measures the amount of ventilation obtained by repeating maximum voluntary effort to breathe as fast and as deep as possible per unit time. The end MVV value is related to the strength of the respiratory muscles, the elasticity of the chest, the elasticity of lung tissues as well as airway resistance.

A spirometer is used to diagnose COPD, asthma, restrictive lung diseases (such as pulmonary fibrosis), and many other diseases and conditions that affect lung function.




If you would like to know more about the our range of spirometers and peak flow meters , please contact the SA Healthcare sales team on 021 555 4328 or learn more them from the website www.sahcare.co.za !

Comments

  1. Greatest thanks to Dr Oyagu for his herbal drugs that he prepared for me and when i start using it in just 2weeks i was completely cured and that ended my HERPES SIMPLEX 1&2 DISEASE i am so happy and grateful to Dr Oyagu . after reading about him on a testimony of Jason Cash on a blogger. i knew suddenly Dr Oyagu was the right Doctor to cure my HERPES SIMPLEX 1&2 DISEASE. i discuss with Dr Oyagu and he prepared a herbal medicine for me and when it got sent to me in south korean . i used the herbal medicine and 2weeks and i went to check up again. after 15years of suffering from HERPES SIMPLEX 1&2 at last i am smiling once again. Dr Oyagu also has remedy to others disease like COLD SORES,HIV/AIDS,DIABETES.CANCER,HIGH BLOOD PRESSURE AND MANY MORE. I oblige everyone to contact this powerful herbalist Dr Oyagu and be free from your suffering. contact his WhatsApp line:+2348101755322 or his Email via dr.Oyaguherbalhome@gmail.com

    ReplyDelete

Post a Comment

Popular posts from this blog

An Easy Guide to Pulse Oximeters

Oxygen is vital to system and organ function in our bodies. In order to be carried around the body, molecules of oxygen attach to the haemoglobin proteins in red blood cells. The amount of oxygen (measured as a %) in haemoglobin proteins is called ‘oxygen saturation’ and this percentage can be determined using pulse oximetry. The values from pulse oximetry are useful as they tell us how much oxygen is actually reaching the different organs and systems in the body. Pulse oximetry uses devices called pulse oximeters that attach to an area on the patient where blood flow can be measured (most commonly on the finger). Light is then shone through the skin it is positioned on and a detector on the other side measures the amount of light that makes it through. The amount of absorbed light is indicative of the oxygen concentration and as such, a pulse oximeter does not directly measure oxygen saturation but rather closely estimates it. Normal levels of oxygen saturation are between 95-100%

What is an Oxygen Concentrator and how does it work?

Well, the clue is in the name. These machines suck in normal air – which has roughly 80 % nitrogen and 20% oxygen and force it through a special sieve. They are used on patients who have poor lung function as the higher concentration of oxygen allows the patient to get sufficient oxygen. So, how exactly does an oxygen concentrator work? The oxygen concentrator’s sieves trap the nitrogen and pump out oxygen at concentrations of up to 95%. The purity of the oxygen depends on the size of the sieves and the power of the motor. From there the sieves hold onto the nitrogen until they are saturated. Most machines have a 6000-8000 hour life span. After this time, the sieves need to be replaced. Oxygen concentrators are not only convenient, but they are also affordable and do not need to be refilled on a regular basis. These factors make this medical device a commonly used item for oxygen therapy at home as well as on patients in hospital. SA Healthcare is one of th