Estimated Income Tax Brackets and Rates In 2017, the income limits for all tax brackets and all filers will be adjusted for inflation and will be as follows (Table 1). The top marginal income tax rate of 39.6 percent will hit taxpayers with taxable income of $418,400 and higher for single filers and $470,700 and higher for married couples filing jointly.
Many medical conditions can cause secondary excessive daytime sleepiness, including head trauma, stroke, tumors, inflammatory conditions, encephalitis, and genetic and neurodegenerative diseases. Psychiatric conditions, especially depression, can also result in excessive daytime sleepiness.
Even the condition of obstructive sleep apnea can cause hypercapnia. Sometimes it can be caused due weakness in the skeletal muscles. If the person is kept exposed to higher levels of carbon dioxide for long time, it can trigger hypercapnia. This condition can also be caused due to initial inhalation of supplementary oxygen by a patient with underlying medical problems like sleep apnea.