In other acute situations patients may need a higher concentration of oxygen and a non-rebreathe mask or simple oxygen mask is often used. Flow rates of 1-4 litres per minute are used with nasal cannulas, equating to a concentration of approximately 24-40% oxygen.Flow rates of up to 6 litres can be given but this will often cause nasal dryness and can be uncomfortable for patients (British Thoracic Society, 2008).hey deliver oxygen in a variable manner; this means the amount of oxygen inspired depends on the patientâs breathing rate and pattern. For this reason they are not suitable for use in the acute phase of illness with patients who need controlled oxygen therapy.
If you paper file, it will take three to four weeks for the IRS to process the return and acknowledge your refund. If you e-file, you will get a notice of arrival within 24 hours and confirmation of refund within 72 hours.
exists and is an alternate of . If tax return was filed online completely and correctly and you have received your acknowledgment from the IRS that they have received and accepted your 1040 federal income tax return as you filed it from that date it could take about 10 days to 3 weeks for you direct deposit. If the tax return was mailed it could take 6 to 8 weeks for the direct deposit to be made. The fastest and easiest way to find out about your current year refund is to go to the IRS gov web site and click and on left side of the page under Online Services choose the Check on Your Refund Where's My Refund?