Details Title: 000 Kettering H Medical Gas Theory Description: H Medical Gas Total Flash Cards: 41 Created: 09/21/2009 14:42:27		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Health Care Flashcards
Cards in this set: Term hypoxemia causes what with regard to circulatory system Definition vasoconstriction in lungs; vasodilation in periphery vessels Term how does oxygen therapy assist the heart Definition benefits is that pulmonary arteries dilate which reduces stress to the heart Term what is main indication of hypoxemia Definition increased heart rate Term confused, lethargic, agitated Definition not getting enough oxygen to brain Term hazards and complications of oxygen Definition combustible, retinopathy of prematurity - high PO2 can damage the eyes of newborn (not FIO2 but PO2) oxygen induced hypoventilation Term oxygen toxicity Definition 60% or greater, concerned with toxicity. Term absorption atelectasis Definition high FIO2 when oxygen is absorbed by the body and causes absorption atelectasis - make changes gradually to allow for nitrogen release Term safety concerns with oxygen therapy Definition electrical, fire, friction, oil Term chronic lung disease FIO2 Definition typically less than 30% Term when to use low flow device; how would you fix it; cannula Definition low flow means pt is breathing spontaneously and also breathing air on their own. - use when deliver oxygen from .24 - .45; 1-6 liters. Add approximately 4% to each one Liter (i.e. 1 L = 24). Works well for COPD. Term oxygen conservation cannula or reservoir cannula Definition pendant hanging down, reservior allows oxygen to buildup so that a higher FIO2 is entrained. Most common is homecare scenario so can run at lower liter flow with same level of oxygen therapy Term transtracheal oxygen catheter Definition invasive, surgically implanted catheter - might be indicated for trauma or burns to face. If becomes suddenly short of breath, blocked catheter needs to be flushed out with saline. Term simple oxygen mask Definition mask itself is reservoir generating higher FIO2, patient inhales and exhales into mask requiring a minimum flow of 5 L/min to flush out the CO2. 6-10 liters .40 - 55 and not appropriate for COPD patient. If simple mask is running at 4 L, answer would be to increase the flow. most popular answer to correcting equipment problems Term partial rebreather Definition simple mask with bag which adds higher reservoir with higher FIO2. .60 - .65, flow from 6-10, has NO one-way flaps - room air can be drawn into the device Term high flow device Definition 100%, FIO2 from .21 - 1.0, used in emergency situation like pneumo, CO poisoning, CHF, burns, etc. Three one-way valves, troubleshooting if bag collapses increase the flow, if bag doesn't contract when patient inhales then mask is not tight, seal maks, and if valve is stuck replace the mask Term air entrainment / venturi maks Definition precise FIO2 therefore ideal for COPD; ideal for patients with irregular tidal volumes, total flow increases as size of air entrainment ports are increased and vice versa Term Briggs Adapter or T-piece Definition .21 - 1.0 depending on aerosol source, reservoir tubing is used to maintain FIO2, should see aerosol fro reservoir tubing and if disappears, troubleshooting is increase flow, add more tubing, set up device to provide more flow like a blender or tandem set-up or change flowmeter) Term aerosol mask trach collars and face tents Definition .21 - 1.0 depnding on aerosol source, room air will not enter exhalation prots if gas's peak flow exceeds peak inspiratory flow Term oxygen hood Definition infant, surrounds head of baby. Flow range is 7-14 because of a bigger reservoir. Analyze FIO2 at the bottom because oxygen sinks Term environmental control devices, mist tent, oxygen tent croupette Definition 3-6 year old won't wear mask, too big for hood therefore use a tent, surrounds bed and tuck around matress, maintain adequate flow of 12-15 due to much larger reservoir .40- .50. if FIO2 is fluctuating, tuck into bed, kick parents out and keep from peeking under the tent. humidity, check jet nebulizer if stops nebulizing, watch fluid overload Term incubator Definition infant not as good as hood, controls temperature and humidity, use incubator along with hood to better control environment. Without hood, 40% - 50% at 8-15 does not have ready access to baby Term radiant warmer Definition open incubator with ready access to baby, ideal for code emergency and for easy access Term CPAP mask Definition tight seeal over mouth and nose, leaks causes losing pressure and leaking air which messes with FIO2 - cannot maintain pressure, leak or increase flow Term nasal CPAP device Definition nasal prongs for infants, nasal mask. Check size of prongs, can lose CPAP if baby is crying (pacifier in mouth) Term general troubleshooting for oxygen device equipment Definition loss of pressure, leaks look for leaks and if none then increase the flow; increased pressures would be an obstruction, to clear out. If not, check the valves. If none works, decrease the flow Term hyperbaric oxygen Definition deliver oxygen under increased pressure used for severe CO poisoning, tissue transplants/grafts, anaerobic infections, decompression sickness (bends) Term helium/oxygen therapy Definition mixture of helium and oxygen, substituting helium for nitrogen because it is lighter. - indicated when patient's wob would be relieved due to upper airway obstruction, swelling, vocal cord paralysis, anything in upper airway that would increase work of breathing. using oxygen flowmeter to deliver heliox, so the conversion factor is 1.8x greater. so if flowmeter is 10 liters, the real flow is 18 Term NO therapy Definition physiologic effect of NO is relaxes smooth muscle, gets more blood flow to lungs and relaxes heart. Effective does is 2-20 ppm Term how long does a cylinder last Definition guage pressure (PSI) times the tank factor = total liters. Take that by the liter flow and that will tell you. Psi x tank factor/liter flow Term tank factors E cylinder Definition 0.3 (rounded) Term tank factors H cylinder Definition 3.0 (rounded) Term how long will a full e cylinder running at 10 LPM Definition 2200 x .3 = 660/10 = 66 minutes which is 1 hour and six minutes Term what is the psi of a full tank cylinder Definition 2200 psi Term single stage reducing valve vs double stage Definition one or two popoff valves Term troubleshooting reducing valves Definition if poppet valve operated by spring and diaphragm fails, the excess pressure is relievd through popoff valves, if diaphragm ruptures or leaks, pressure is relieved through vent holes, when flowmeter is attached to a reducing valve it is called a flowmeter Term flowmeter Definition disinfect, wipe off with alcohol, if massive leak occurs try reinserting to the wall and then remove again, if not contact maintenance. Term pulsed dose oxygen delivery system Definition used in place of flowmeter, with low flow to conserve liquid oxygen. Continuous or pulse (like jim's puffs of air) if not triggering, switch to continuous Term blender or air oxygener proportioner Definition blends oxygen and air and are very accurate. Needs at least 40 psi from both the air and oxygen sides. Alarm is a low pressure alarm, but not a low FIO2 monitor Term air compressor Definition COPD, drive the nebulizer with no oxygen Term calculate total flow Definition total flow = flowmeter setting X factor Term What is the factor for calculating the flow for the following FIO2 Definition 35% = 5.3; 40% = 4.0; 60% = 1:1 = 2; 28% is 10:1 = 11