Spirometry Test in Sharjah
Medically reviewed by Dar Al Kamal Team
What is spirometry?
Spirometry measures airflow. You take the deepest breath you can, seal your lips around a mouthpiece and blast the air out as hard and fast as possible, then keep pushing until your lungs feel completely empty. A sensor records the volume and speed of that breath and draws it as a curve on screen.
Two numbers matter most, and both are easier to understand than their names suggest:
- FEV1 (forced expiratory volume in one second) is how much air you push out in the first second. Narrowed airways slow this first burst down.
- FVC (forced vital capacity) is the total amount you blow out in the whole breath, from completely full to completely empty.
The ratio between them shows what share of your breath leaves in that first second. A low ratio points to narrowed airways, the pattern seen in asthma and COPD. A reduced total with a preserved ratio suggests the lungs are holding less air overall, which leads to fuller testing. Your results are compared with predicted values for someone of your age, height and sex, which is why your height is measured on the day.
Who needs it
Spirometry is the core test for anyone whose breathing may be affected by the airways. Your doctor may request it if you have:
- Wheeze, chest tightness or cough that comes and goes, especially at night or with dust
- Breathlessness on exertion that seems out of proportion to your fitness
- A long smoking history, including shisha, dokha or midwakh, or regular vaping
- Years of work in construction, quarrying, cleaning products, welding or other dusty trades
- Known asthma or COPD, to check control and see how treatment is working
- A planned operation, where lung reserve helps anaesthetic planning
It is also used to follow a condition over time. Repeating the test at intervals shows whether your airflow is holding steady, which is often more informative than any single reading. The department-level overview of lung conditions sits on the Pulmonology page, and ongoing care is covered on the asthma treatment and COPD management pages.
What happens
At Dar Al Kamal Hospital, Sharjah, spirometry is carried out in the pulmonology clinic. You sit upright in a chair, feet flat on the floor, and a soft clip is placed on your nose so all the air goes through the mouthpiece.
Effort decides the result, so coaching is a big part of the test. The person running it demonstrates the breath, then talks you through each attempt, often loudly and with encouragement: "breathe all the way in… blast… keep going, keep going". This is deliberate. A hesitant start, a cough, a leak around the lips or stopping early all make the reading look worse than your lungs really are. You repeat the breath several times until at least three good attempts closely agree, and the best is used.
The reliever check comes next. You then take a few puffs of a reliever inhaler through a spacer, wait a short while for it to work, and repeat the blows. A clear improvement in airflow after the reliever, called reversibility, supports asthma; airflow that stays largely the same fits better with COPD. This before-and-after comparison is the single most useful step in telling the two apart.
If the pattern needs more detail, full pulmonary function testing adds lung volumes and gas transfer. A chest X-ray through radiology may be added to look at the lungs themselves.
Preparing for it
Good preparation keeps your result accurate:
- Follow the instructions you receive at booking about pausing any inhalers beforehand, and keep your reliever with you at all times
- Avoid smoking, shisha and vaping on the day of the test
- Skip a heavy meal and vigorous exercise in the hours before
- Wear loose clothing that lets your chest and stomach move freely
- Bring all your inhalers and any previous spirometry printouts, including reports from other countries
Tell the team at booking about any recent eye, chest or abdominal surgery, a recent heart problem, or recent coughing up of blood, as the test may be timed around your recovery. During Ramadan, mention that you are fasting so the appointment and any reliever puffs can be planned with you. If a dust storm has flared your symptoms, say so on the day, since it helps the pulmonologist interpret the numbers.
Afterwards
Most people feel back to normal within moments and can drive, work and eat as usual. Some feel briefly light-headed, tired or a little coughy from the repeated forceful breaths; sitting quietly for a minute settles this.
The pulmonologist usually goes through the curve and the numbers with you at the same visit, explaining what the pattern means and whether treatment or further tests are needed. Keep a copy of your results, since comparing future tests with today's is how change is tracked.
Contact the hospital if you feel wheezy or breathless after the test and your reliever gives little relief. For severe breathlessness, blue lips or an asthma attack that is failing to respond to your reliever, call emergency services or go to the nearest emergency department.
Cost and insurance
Most UAE health insurance plans cover spirometry when a doctor requests it for symptoms or a known lung condition, and it is often done at the same visit as the consultation. Full lung function testing and imaging sometimes need pre-approval. Dar Al Kamal Hospital, Sharjah can help you confirm your cover on 06 599 7777.
Related services
Frequently asked questions
Is spirometry painful?
Spirometry is painless and involves no needles, although the repeated hard breaths can leave you briefly light-headed, tired or coughing. These effects settle within minutes of resting.
How long does a spirometry test take?
The breathing part of spirometry is quick, but the whole appointment takes longer because several attempts are needed and the reliever check involves a short wait before repeating the test. Allow time for the consultation and discussion of results as well.
What do FEV1 and FVC mean?
FEV1 is the amount of air you blow out in the first second of a hard breath, and FVC is the total amount you blow out from completely full to completely empty. Comparing the two shows whether your airways are narrowed, as in asthma or COPD.
Why does the person running the test keep telling me to push harder?
Spirometry depends entirely on your effort, so strong coaching helps you produce your true best breath. A hesitant start or stopping early makes your lungs look worse than they are, which could lead to the wrong conclusion.
Can spirometry diagnose asthma if I feel fine on the day?
Spirometry can be normal in asthma on a good day, because asthma varies over time. A normal result therefore does not rule asthma out, and the pulmonologist may repeat the test when you have symptoms or add other lung function tests.
What are the risks and limitations of spirometry?
Spirometry is a very low-risk test, with the main side effects being brief light-headedness, coughing or tiredness from the forceful breathing. It is postponed after some recent operations, a recent heart problem or coughing up blood, and its accuracy depends on your effort, so a poor attempt can underestimate your lung function.
Should I stop my inhalers before spirometry?
Follow the specific instructions given at booking, which may ask you to pause certain inhalers for a set time before the test. Always keep your reliever with you, and use it if you need it, then tell the team on the day.
Is spirometry covered by insurance in the UAE?
Most UAE insurance plans cover spirometry requested by a doctor for breathing symptoms or a known lung condition. Confirm your cover with Dar Al Kamal Hospital, Sharjah on 06 599 7777.
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