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Level 2 sleep study is a full polysomnography (similar like Level 1) but conducted at home without a technician present. It records almost all the same parameters as Level 1, including brain activity, making it a comprehensive home-based test.
Level 3 testing is a simplified sleep study done at home. It focuses on detecting all the sleep-related breathing disorders like Obstructive Sleep Apnea (OSA), but does not monitor brain waves, so sleep stages can’t be assessed.
It’s used for the patients:
It’s conducted for:
A technician may visit your home or you may be trained at a clinic on how to apply the sensors and operate the device.
The device records all the parameters through the night while you were sleeping normally at home.
The device is then returned to the clinic next day for data analysis. A sleep specialist interprets the report and makes treatment recommendations.
The test device is provided by a sleep clinic or technician, either in person or delivered to your home.
Start the device before you sleep. It collects data overnight while you sleep in your natural environment.
The next morning, you return the equipment as directed for report generation.
Level 2 is more comprehensive and suitable when a detailed diagnosis is needed. Level 3 is sufficient for straightforward cases of suspected OSA without other complications.
It’s accurate for detecting moderate to severe obstructive sleep apnea but may miss mild cases or other sleep disorders like central apnea or insomnia.
Yes, both tests are ordered by a sleep or pulmonology specialist after an initial consultation.
You may be advised to undergo a Level 1 in-lab polysomnography for more precise results.
Sleep apnea is also known as Obstructive Sleep Apnea (OSA) in which there is OBSTRUCTION in the upper airway during SLEEP causing APNEA which is stoppage of breathing. There is a loss of muscle tone during sleep which causes the airway muscles becom floppy and the tongue to fall back. This leads to narrowing of the upper airway during sleep in everybody, but this can cause obstruction of the airway in some people especially those with a thick neck like obese people. Excessive respiratory efforts to overcome airway obstruction and a fall in oxygen level due to this obstruction awakens you from your sleep transiently. As you wake up transiently from sleep, the airway opens to make you comfortable, and you fall asleep again. But as soon as you sleep the cycle repeats and the whole night is disturbed, making you feel sleepy, tired, and fatigued the next day causing a lack of concentration and irritability. In extreme situations, this can lead to automobile accidents in case you have sleep apnea, and you drive.
During sleep apnea, as your oxygen falls and sleep is disturbed, there is a worsening of the control of your blood pressure and diabetes. People with sleep apnea also tend to gain weight as they feel hungrier due to increased secretion of the hunger hormone, Ghrelin and lack of the satiety hormone, leptin. This creates a vicious cycle of obesity causing sleep apnea and sleep apnea worsening obesity.
Symptoms of sleep apnea include loud chronic snoring, frequent pauses in breathing during sleep, gasping, snorting, or choking during sleep, unable to stay asleep, feeling unrefreshed after waking, morning headache, dry mouth after waking, and most importantly excessive day time sleepiness or tiredness or feeling of irritability
Loud snoring is the most common symptom of sleep apnea, however not everyone who snores loud suffers from sleep apnea.
As there are sleep disorders there are sleep specialists too to diagnose and treat these disorders. A sleep test called polysomnography conducted under a sleep specialist care will help you make the diagnosis of sleep apnea. Sleep stdu can be done at sleep lab near me or it can be a sleep test at home (home sleep study). The good news is that there is sleep apnea treatment with multiple interventions which include dental devices and by the application of a sleep apnea machine called positive airway pressure device (CPAP/Bipap) which pushes air and relives the airway obstruction during sleep with air pressure through CPAP mask. This is considered as the most effective and reliable way of sleep apnea treatment. However, there is sleep apnoea treatment withoust CPAP also like for mild sleep apnea cases, you may just make some lifestyle modifications such as losing weight can help cure sleep apnea in some patients and quitting alcohol. Sleep apnoea treatment without CPAP can also be done in with sleep apnea surgery like bariatric surgery for losing weight and upper airway sleep apnea surgeries can also offer a cure in selected patients but the gold standard treatment remains the sleep apnoea machine eg CPAP device. With obesity becoming an epidemic, sleep apnea cases are bound to increase, and awareness about this disease is a necessary to break the cycle and halt its ill effects.
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