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Prep4USMLE Forum » USMLE Step 1 Forum » Pathology Forum |   Breathing Patterns    Author 8 Posts Kazem Forum Elite Topics: 76 Posts: 296 01/29/05 - 04:44 AM             #1 distinguish between the following patterns of breathing and name at least one condition where they can present. - Kussmaul - Biot's - Hysterical - apneustic - cheyne stoke ssrpk Forum Fanatic Topics: 154 Posts: 2,819 01/29/05 - 06:03 AM             #2 Kussmaul - diabetic ketoacidosis apneustic - high altitude?? cheyne stoke -chronic heart failure?? ___________________ life is guud Kazem Forum Elite Topics: 76 Posts: 296 01/29/05 - 06:09 AM             #3 you've got the kussmaul right. I'm not sure whether CHF can cause cheyne stoke breathing pattern. I only know it happens when central respiratory mechanism don't function properly. ssrpk Forum Fanatic Topics: 154 Posts: 2,819 01/29/05 - 06:13 AM             #4 yeah u got tht rite .....tht leads to delayed negative feedback response.... i am guessing CHF ledas to slow perfusion :arrow: of brain stem.... any explanation? ___________________ life is guud Kazem Forum Elite Topics: 76 Posts: 296 01/29/05 - 06:24 AM             #5 well I can see your logic, but as you know cheyne stoke has a cyclical pattern with a period of increased tidal volume followed by apnea. if low perfusion was to have caused this then what would be cause of its cyclical pattern? ssrpk Forum Fanatic Topics: 154 Posts: 2,819 01/29/05 - 06:35 AM             #6 look the basis of this defect in cyclical pattern is redued negative feedback effect reduced flow becoz of CHF will also delay the monitoring of atreial PO2 and the subsequent regulatory maneuver played by brain ...slow update of brain..... wht do u comment? ___________________ life is guud phuluong2k Forum Fanatic Topics: 714 Posts: 2,008 01/29/05 - 07:37 AM             #7 Biot's irregular apnea, seen in increase intracranial pressure How about the two others ? Kazem Forum Elite Topics: 76 Posts: 296 01/30/05 - 02:37 PM             #8 Cheyne stoke----> cyclical changes in tidal volume. the tidal volume first increases and then decreases to the point of apnea. Apneustic-----> is seen after head trauma and is characterised by inspiratory breath holding that lasts many seconds, followed by brief exhalations. Biot's------> is seen in some patients with CNS disease (e.g. menengitis). it consists of periods of normal breathing interrupted suddenly by periods of apnea. Hysterical-----> may produce hyperventilation, i.e. rapid, intense breathing that causes the PaCO2 to decrease. Kussmaul-----> occurs in Diabetic coma or ketoacidosis and consists of continuous, rapid, deep breathing. You don't have permission to post. Login or Register to post messages in this topic Current Rating: 0/5 1 2 3 4 5 0/5 based on 0 votes Bad 12345 Good Similar forum topics breathing??? abnormal breathing 12. 8 year old with difficulty breathing transitional statement for breathing pattern Related resources All ProductsApparelBabyBeautyBooksMusicDVDElectronicsGourmetHealthJewelryKitchenMagazinesMusicOfficeOutdoorComputersPhotoSoftwareSportingHardwareToysVHSGames Contact | Leaders | Disclaimer | Privacy Copyright @ Prep for USMLE. All rights reserved.