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chp 39 oxygenation

What is pulmonary ventilation Movement of air into and out of lungs by two phases: inspiration & expiration
What is Respiration Gas Exchange between atmospheric air in alveoli & blood in capillaries
What is perfusion Process by which oxygenated capillary blood passes thru body tissues
What regulates respiration The medulla is the respiratory center.stimulated by increase in CO2 and H+ ions. Chemoreceptors in aortic arch & carotid sensitive ABG and BP that will activate medulla. Stimulation of medulla increases rate & depth of ventilation.
What are Normal breath sounds Vesicular – soft low pitched over peripheral lung fields; Bronchial – loud high pitched sounds over trachea/larynx; Bronchovesicular – medium pitched blowing over major bronchi
What are adventitious breath sounds Crackles, Wheezes, Pleural Friction rub
What are Crackles (fine or coarse) Frequently heard on inspiration are soft high pitched discontinuous popping sounds
What are Wheezes Continuous musical sounds produced as air passes thru constricted airways (sibilant high pitched & whistling or sonorous sounds like a snore)
What are Pleural friction rub Continuous dry grating sound caused by inflammation of pleural surfaces and loss of pleural fluid
What is Pulse oximetry Measures arterial blood oxyhemoglobin saturation; Use in monitoring pts with oxygen therapy or at risk for hypoxia. Desaturation indicates gas exchange abnormalities. Range of 95-100% considered normal
What are nursing interventions for respiratory patients Reducing anxiety, maintain good nutrition, promote comfort (positioning), maintaining adequate fluid intake, promoting proper breathing
What are some breathing techniques Deep breathing – such as in hypoventilation; make each breath deep to move bottom ribs breathing in thru nose and out thru mouth; Incentive spirometry; Pursed lip breathing; Abdominal & diaphragmatic breathing
What is proper way to use incentive spirometer visual reinforcement for deep breathing; assists pt to sustain inspiration & expiration (instruct pt to exhale normally, place lips around mouthpiece, instruct not to breathe thru their nose and inhale deeply & slowly hold breath & count to three
Created by: rivabard