What is a polysomnography test?
A test used to identify sleep disorders is polysomnography, also referred to as a sleep study. During sleep, your heart rate, breathing, blood oxygen level, and brain waves are all captured by polysomnography. It also analyses eye and leg actions.
A sleep study can be performed in a sleep center or a hospital’s sleep disorders department. Normally, the test is conducted at night. However, shift workers who typically sleep during the day may choose to do it throughout the day.
If you have been given a diagnosis of a sleep disorder, a sleep study may also aid in formulating a treatment plan. You might also use it to modify your course of treatment.
A sleep issue may be present if you consistently feel excessively drowsy during the day or find yourself nodding off at the wrong times.
You might have a sleep issue if you frequently wake up throughout the night or have trouble falling asleep.
It may be an indication of sleep apnea if you or your partner notice that you gasp for air or stop breathing while you sleep.
Even if you get adequate sleep, you could still feel weary; this could indicate a sleep issue.
A sleep problem like restless leg syndrome or periodic limb movement disorder may be present if you move erratically or frequently while you sleep.
Excessive drowsiness or wooziness during the day
How you prepare
Prior to a sleep study, stay away from alcoholic beverages and foods that contain caffeine because they can interfere with sleep cycles and exacerbate the symptoms of some sleep disorders.
A polysomnography test keeps track of the various sleep cycles and phases. It primarily monitors heart rate, oxygen levels, breathing rate, and airflow. The following circumstances typically involve the use of polysomnography tests:
Other respiratory abnormalities associated with sleep such as sleep apnea
This happens when someone’s breathing alternately stops and starts while they are sleeping. This disease can cause loud snoring and frequent awakenings in sufferers.
This condition is indicated by frequent leg bending and stretching while you sleep. It frequently goes hand in hand with restless leg syndrome.
This illness is characterized by daytime sleepiness that comes on suddenly and with extreme drowsiness.
Disorder of REM sleep behavior
During the rapid eye movement (REM) stage of sleep, while people are dreaming, this disorder involves aberrant behaviour. People may act out their dreams while they are still asleep as a result of it.
When sleeping, odd behavior occurs
A polysomnography test may be advised by the doctor if a patient moves or walks rhythmically while they are asleep.
Long-term sleeplessness without a reason
Someone who has trouble sleeping or sleeps a lot can be requested to do a polysomnography exam.
Polysomnography test risk
Due to the fact that a polysomnography test is painless, it is regarded as a risk-free procedure. However, electrodes are applied to the skin throughout the test, which could result in a little burning sensation. There are no additional hazards associated with the test.
Results of a polysomnography test
The average turnaround time for polysomnography test results is 3 days. The outcomes could point to the following categories of sleep disorders:
The clinician may examine the polysomnography test report in the methods listed below to spot sleep apnea:
After reviewing these results, the doctor can check the Apnea Hypopnea Index (AHI) score. An AHI score of less than 5 is considered normal. This shows that the patient does not have sleep apnea, together with data showing normal brain waves and muscle activity. However, an AHI score of 5 or more is considered abnormal. The chart below shows the different levels of sleep apnea severity based on AHI score –
A patient must take a sleep study exam at home in Delhi NCR to identify a polysomnography test or Sleep Apnea. The patient must apply the night in the laboratory while the polysomnography (PSG) equipment records his or her physical data. This is normally done in a sleep lab. However, a polysomnography test may now be carried out at home and is known as a home sleep study or a home sleep test because to technological improvements.