1 biological factors, depending on how active the

1 “Peakflow is a simple measurement of how quickly you can blow air out of your lungs.It’s often used to help diagnose and monitor asthma.” There are varying forms of equipment used for peak flow buta cheap and widely used piece is the peak flow meter.  2The peak flow meter is a tool calibrated to work as a methodin attaining results based on a person’s rate of breath expenditure and providesinsight into the health of a person’s airways. 3″Tomeasure your peak flow, you take a deep breath in and blow as fast as you caninto a small, hand-held plastic tube called a peak flow meter.

The measurementtaken is called your peak flow.” Measuring peak flow can have variations depending onenvironmental and biological factors, depending on how active the person is andthe rate of their breath expendeture. Some people develop to have a larger lungcapacity than others while some who potentially may do less exercise could havea lower breath expenditure capacity in a smaller time leading to a lowerreading.

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Age, height and their BMI all play a role in the result of the peakflow test. There are especially large variations in young children as they growat near unpredictable rates. From what has been seen through tests taken outthere is a correlation 4″In2828 healthy children the peak expiratory flow rate increased with age, height,and weight.

”  In addition to this,pre-existing disease such as heart disease or environmental factors of smokingwill inhibit peak expiratory flow. However, a person’s activity in sports andmanual labour could potentially increase peak expiratory flow based upon theintensity of the two respectively. Peak flow charts are for both medical professionals and sufferersof the likes of asthma. The chart will be used regularly in conjunction withthe peak flow meter so that results can do into a chart and an average can betaken of the person’s peak flow. Peak flow graphs are used to plot a person’s results againstthat of a healthy person, medical professionals use this to decide whether ornot a person falls below or above the average for those of their height and agegroup. This aids in the diagnosis of a potential sufferer of any multitude ofdisease or illnesses.

  5A peak flow meter is used through a few simple steps. Firstly, the peak flow must be set to zero on the scale andones fingers are not obstructing the view of the scale so that there is nochance of such influencing the test in any way. Secondly, the person must inhale a deep breath and place their mouthover the mouthpiece ensuring it is completely covered. Thirdly, the person mustexhale as quickly and hard as they can, expelling as much air from the lungs asthey can within that one exhalation. Lastly, a note of the result must be takenso that it can be plotted on a graph. Measuring peak flow and comparing said results against thepeak flow score (Peak expiratory flow) can lead to an indication of narrowairways; the extent of such would be determined by how fast someone can breatheout.

 This could lead to the diagnosis ofasthma if there are other tests taken such as the 6″spirometrywill often be needed to confirm the diagnosis.” The test would be taken if aperson is finding it difficult to expel larger volumes of air and potentiallyif a person has struggles breathing. It will also be carried out should aperson be found to be regularly out of breath. Based upon correlating theresult of the test with the graph, there is potential for a diagnosis. Medicalprofessionals will consult a peak flow graph to decide whether or not theresults gathered are abnormal, they will also use the diary handed to thepatient to look for a pattern over a single score as there are a multitude ofenvironmental factors affecting peak flow one of such is the time of day withboth night and day scores potentially coming up as different.  Recovering from this can be through the use ofsports. Through studies there has been evidence that the possibility forincreased peak expiratory flow in sports. 7″Comparedto first-time measurements (P < 0.

05). PEFR in elderly males increased byswimming once a week for 28 weeks” This however was not the same for females inwhich over the time period there was little change in the peak expiratory flowreading which leads to the suggestion that this could be gender –dependant orthat the difference in intensity for males and females was significantlydifferent.          There are many ways to test the lung capacity of a patientor of one’s own person. The multitude of different tests will be applied duringvarious circumstances and needs of the patient. Pulmonary Function Testsmeasure the breathe expenditure and estimates the size of the patients lungs. For this test to take place the main pieces ofequipment is a spirometer, a monitor to measure the readings and a nose clip toprevent loss of air through the nose while breathing. Without the use of a nosepiece the test can vary greatly in accuracy as the loss of air would beimmeasurable, meaning that the results taken could not be seen as acceptable.There is also the lung volume test in which an the patient is sealed in anairtight b1 Unknown.

(21/08/2015). Peak flow test. Available: https://www.nhs.

uk/conditions/peak-flow-test/.Last accessed 08/12/2017.2 Unknown.(2015). Peak flow test. Available:https://www.

nhs.uk/conditions/peak-flow-test/. Last accessed 10/01/2018.

3 Unknown.(2016). Peak flow test. Available: https://www.

asthma.org.uk/advice/manage-your-asthma/peak-flow/.Last accessed 10/01/2018.

4 JW Carson, H Hoey, and M R Taylor. (1989). Growth and other factors affectingpeak expiratory flow rate.. Available:https://www.ncbi.nlm.nih.

gov/pmc/articles/PMC1791796/?page=1. Last accessed10/01/2018.5 Unknown.(Uknown). Peak Expiratory Flow. Available:http://mylungsmylife.

org/wp-content/uploads/pef_graph.jpg. Last accessed10/01/2018.6 Unkown.(2015). Peak flow test.

Available:https://www.nhs.uk/conditions/peak-flow-test/. Last accessed 10/01/2018.7 Sato,K. , Konishi, Y.

, Nakada, M. , & Sakurai, T. (2013). Swimming ExercisesIncrease Peak Expiratory Flow Rate in Elderly Men. American Journal of SportsScience and Medicine, 1(4), 56-58.


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