NR 224: Fundamentals Exam 2 (Ch. 40 Oxygenation) Flashcards
Primary function of the lungs is to –>
transfer O2 from the atmosphere into the alveoli & CO2 out of the body as a waste product
changes in intrapleural & intraalveolar pressures & lung volumes cause the process of
inspiration (active process) & expiration (passive process)
decreased ________ levels alter the patient’s ability to transport O2
hemoglobin
impaired chest wall movement reduces
the level of tissue oxygenation
hyperventilation
is a respiratory rate greater than that required to maintain norma levels of CO2
hypoventilation
causes CO2 retention
hypoxia occurs if the amount of O2 delivered to tissue is
too low
primary function of the heart are to deliver
deoxygenated blood to the lungs for oxygenation & O2 & nutrients to the tissues
nursing assessment includes
respiratory pattern, thoracic inspection, palpation, & auscultation for deviations from normal
diagnostic & laboratory tests complete the database for a patient with
decreased oxygenation
health promotions:
vaccinations against flu & pneumonia, exercise, nutrition, smoking cessation, & environmental assessment for pollutants & air quality (mask)
airway maintenance requires mobilization of secretion by increased
fluid intake, humidification, or nebulization
breathing exercises improves
ventilation, oxygenation, & sensations of dyspnea
chest physiology includes
postural drainage, percussion, & vibration to mobilize pulmonary secretion
airway maintenance may require use of
artificial airways & sunctioning
pneumothorax
hole in the lung and causes the lung to collapse
promotion of lung expansion can be achieved by
mobility, positioning, incentive spirometry, & chest tube insertion
nasal cannulas & O2 masks deliver
O2 therapy, which improves the levels of tissue oxygenation
learning breathing exercises (ex. pursued-lip breathing & diaphragmatic breathing) benefits patients with
COPD
Acute Coronary Syndrome (ACS)
unstable cardiac ischemia
Potter 828
Afterload
resistance to left ventricular ejection; the work the heart must overcome to fully eject blood from the left ventricle. (Potter 824)
Angina pectoris
is a transient imbalance between myocardial O2 supply & demand
(Potter 828)
Apnea
absence of respiration for a period of time
Potter 834
Atelectasis
obstruction of airway; collapsed lungs
Potter 822
Bi-level Positive Airway Pressure (BiPAP)
ventilatory support used to treat patients with obstructive sleep apnea, patients with congestive heart failure, and preterm infants with underdeveloped lungs
(Potter 848)
Bronchoscopy
is a procedure that allows your doctor to look at your airway thru a thin viewing instrument
(Potter 832)
Cardiac Output
Volume of blood expelled by the ventricles of the heart, equal to the amount of blood ejected at each beat multiplied by the number of beats in the period of time used for computation (usually 1 minute).
(Potter 824)
Cardiopulmonary Rehabilitation
Actively assisting the patient with achieving and maintaining an optimal level of health through controlled physical exercise, nutrition counseling, relaxation and stress management techniques, prescribed medications and oxygen, and compliance.
(Potter 854)
Cardiopulmonary Resuscitation (CPR)
basic emergency procedures for life support consisting of artificial respiration and manual external cardiac massage
(Potter 853)
Chest Physiotherapy (CPT)
group of therapies used to mobilize pulmonary secretions for expectoration
(Potter 842)
Chest Tube
catheter inserted thru the thorax into the chest cavity for removing the air of fluid; used after chest or heart surgery or pneumothorax
(Potter 849)
Cheyne-Stokes Respiration
occurs when there is decreased blood flow or injury to the brainstem
(Potter 834)
Continuous Positive Airway Pressure (CPAP)
ventilatory support used to treat patients with obstructive sleep apnea, patients with congestive heart failure, and preterm infants with under developed lungs
(Potter 848)
Diaphragmatic Breathing
respiration in which the abdomen moves out while the diaphragm descends on inspiration
(Potter 854)
Dyspnea
sensation of shortness of breath
Potter 831
Dysrhythmias
deviation from the normal pattern of the heartbeat
Potter 827
Electrocardiogram (ECG)
graphic record of the electrical activity of the myocardium
Potter 825
Endotracheal tube (ET)
short-term artificial airways to administer mechanical ventilation, relieve upper airway obstruction, protect against aspiration, or clear secretions
(Potter 846)
Expiration
is a passive process that depends on the elastic recoil properties of the lungs, requiring little or no muscle work
(Potter 822)
Hematemesis
vomiting of blood, indicating upper gastrointestinal bleed
Potter 832
Hemoptysis
coughing up blood from the respiratory tract
Potter 832
Hemothorax
accumulation of blood and fluid in the pleural cavity between the parietal and visceral pleurae
(Potter 849)
Humidification
process of adding water to gas
Potter 842
Hyperventilation
respiratory rate in excess of that required to maintain normal CO2 levels in the body tissues
(Potter 827)
Hypoventilation
respiratory rate insufficient to prevent CO2 retention
Potter 827
Hypovolemia
abnormally low circulating blood volume
Potter 826
Hypoxia
inadequate cellular oxygenation that may result from a deficiency in the delivery or use of O2 at the cellular level
(Potter 827)
Incentive Spirometry
method of encouraging voluntary deep breathing by providing visual feedback to patients of the inspiratory volume they have achieved
(Potter 848)
Inspiration
an active process, stimulated by chemical receptors in the aorta
(Potter 822)
Kussmaul Respiration
increase in both rate and depth of respirations
Potter 834
Myocardial Infarction (MI)
necrosis of a portion of cardiac muscle caused by obstruction in a coronary artery
(Potter 828)
Nasal Cannula
is a simple, comfortable device used for precise O2 delivery
Potter 851
Nebulization
Process of adding moisture to inspired air by the adding water droplets. (Potter 842)
Noninvasive Positive-Pressure Ventilation (NPPV)
Used to prevent using invasive artificial airways (endotracheal [ET] tube or tracheostomy) in patients with acute respiratory failure, cardiogenic pulmonary edema, or exacerbation of chronic obstructive pulmonary disease. It has also been used following extubation of an ET tube.
(Potter 848)
Normal Sinus Rhythm (NSR)
The wave pattern on an electrocardiogram that indicates normal conduction of an electrical impulse thru the myocardium
(Potter 825)
Orthopnea
abnormal condition in which a person must sit or stand to breath comfortably
(Potter 832)
Perfusion
(1) Passage of a fluid through a specific organ or an area of the body.
(2) Therapeutic measure whereby a drug intended for an isolated part of the body is introduced via the bloodstream.
(3) Relates to the ability of the cardiovascular system to pump oxygenated blood to the tissues and return deoxygenated blood to the lungs.
(Potter 822)
Pneumothorax
collection of air or gas in the pleural space
Potter 849
Postural Drainage
use of positioning along with percussion & vibration to drain secretions from specific segments of the lungs & bronchi into the trachea
(Potter 843)
Preload
volume of blood in the ventricles at the end of diastole, immediately before ventricular contraction
(Potter 824)
Pursed-lip breathing
deep inspiration followed by prolonged expiration thru pursed lips
(Potter 854)
Stroke-Volume
amount of blood pumped out of the heart (left ventricle–> body) during each contraction measured in mL/beat
(Potter 823)
Surfactant
chemical produced in the lungs to maintain the surface tension of the alveoli and keep them from collapsing
(Potter 822)
Tracheostomy
procedure whereby a surgical incision is made into the trachea & a short artificial airway (a tracheostomy tube) is inserted
(Potter 847)
Ventilation
respiratory process by which gases are moved into and out of the lungs
(Potter 822)
Ventricular Tachycardia/Fibrillation
are life-threatening dysrhythmia because of the decreased cardiac output & the potential to deteriorate into ventricular fibrillation or sudden cardiac death
(Potter 827)
Wheezing
high-pitched musical sound caused by high-velocity movement of air thru a narrowed airway
(Potter 832)
What are the contradictions to Coronary Angiography?
renal failure and allergy to dye