KDIPIAZZ
Mouseketeer
- Joined
- Dec 7, 2001
- Messages
- 382
Sleep studies can be inconclusive, but it doesn't happen very often.
The AHI (apnea hypopnea index) and RDI (respiratory distress index) need to be at certain levels in order for you to be diagnosed with obstructive sleep apnea. These indexes are then used to grade the degree of OSA - mild, moderate or severe.
98% of patients do not need a repeat diagnostic study. As a previous poster noted, if you are OSA+, you will need to return for a second study, called a titration, where the PAP (C or Bi) is adjusted for your personal levels until the AHI/RDI is brought down to an acceptable level. For 95-98% of patients, one titration study is enough, but occasionally a patient (usually severe osa) will need a repeat (actually called a continued) titration. Generally speaking, the technician runs out of time before an optimal level is reached.
If your sleep is extremely fragmented, you may need a repeat study, especially if you are using meds that affect the central nervous system. Inconclusive results may also indicate the need for a different type of study such as an MSLT (Multiple Sleep Latency Test) or MWT (Maintenance of Wakefulness Test). These tests help rule out narcolepsy
Generally, if a patient can sleep for at least 2 hours, that's enough time to get an AHI and RDI, so don't worry about how much you sleep.
OSA greatly increases the probability of having a stroke or heart attack. Patients with OSA also often find it difficult to control high blood pressure and diabetes, so having a sleep study is a good idea if you have any risk factors for OSA.
The AHI (apnea hypopnea index) and RDI (respiratory distress index) need to be at certain levels in order for you to be diagnosed with obstructive sleep apnea. These indexes are then used to grade the degree of OSA - mild, moderate or severe.
98% of patients do not need a repeat diagnostic study. As a previous poster noted, if you are OSA+, you will need to return for a second study, called a titration, where the PAP (C or Bi) is adjusted for your personal levels until the AHI/RDI is brought down to an acceptable level. For 95-98% of patients, one titration study is enough, but occasionally a patient (usually severe osa) will need a repeat (actually called a continued) titration. Generally speaking, the technician runs out of time before an optimal level is reached.
If your sleep is extremely fragmented, you may need a repeat study, especially if you are using meds that affect the central nervous system. Inconclusive results may also indicate the need for a different type of study such as an MSLT (Multiple Sleep Latency Test) or MWT (Maintenance of Wakefulness Test). These tests help rule out narcolepsy
Generally, if a patient can sleep for at least 2 hours, that's enough time to get an AHI and RDI, so don't worry about how much you sleep.
OSA greatly increases the probability of having a stroke or heart attack. Patients with OSA also often find it difficult to control high blood pressure and diabetes, so having a sleep study is a good idea if you have any risk factors for OSA.
I was up and down quite a bit during the night, I would guess I woke up at least 5 times and went back to sleep. I guess the Dr's will go over my results and send a report ot my Dr within the next 2 weeks
