Respiratory Disorders Flashcards
Airway Resistance
Constriction – Wheezing
Thickening of mucosa – Inflammation
Obstruction of the airway – Mucus
Loss of lung elasticity – food, tumor, emphysema
Pulmonary Function Testing Purpose
Determine the function of the respiratory system
Pulmonary Function Testing Assessment
Flow of inspiration/expiration, medical diagnoses, how much air the lungs can hold
Pulmonary Function Testing Patient Preparation
Assess for analgesic use, assess for bronchodilators, tell patient not to smoke, have patient empty bladder, remove dentures, do not eat a heavy meal 4-6 hours prior
Total Lung Capacity
Volume in lungs after maximal inhalation
Normal pH of Human Blood
7.35-7.45
Respiratory Alkalosis
pH is increased
Headache, lightheadedness, vertigo, mental status changes, paresthesia, hypokalemia, hypocalcemia, tetany, convulsions
Nursing Interventions of Respiratory Alkalosis
Maintain airway
Emotional support
Encourage appropriate breathing pattern
Monitor ventilator
Monitor potassium and calcium medications
Respiratory Acidosis
pH is decreased
More common
Post-op, atelectasis, depression of respiratory status, brain trauma
Respiratory Acidosis Signs and Symptoms
Visual disturbances, diaphoresis, cyanosis, hyperkalemia, rapid pulse, dysrhythmia, hypoventilation, mental status change
Nursing Interventions of Respiratory Acidosis
Airway, monitor for respiratory distress
Oxygen administration, Semi-Fowlers, TCDB
Hydration, suction
Monitor for electrolytes (especially potassium)
Antibiotics, bronchodilators
Pulse Oximetry
SpO2 less than 70% is life-threatening
FiO2
Fraction of inspired oxygen
Nasal Cannula
Low to moderate concentration (1-6 L) of oxygen, safe and simple, easy to control, allows mobility
Easily dislodged, skin breakdown, mouth breathing makes it useless
Face Mask
40-60% FiO2, 5-8 L
High skin breakdown potential, unable to eat, hot, good for mouth breathers
CPAP
Continuous positive airway pressure
Used for sleep apnea
BiPap-Bilevel Therapy
Low pressure on exhalation, high pressure on inhalation
Adjusts the pressure
Postural Drainage
Do not perform if they are bleeding
Allergic Rhinitis and Allergic Conjunctivitis
Hay Fever
Caused by antigen/antibody reactions –> increased secretions, decreased ciliary response, and increased capillary permeability
Can lead to secondary bacterial infection
Diagnostic Testing of Hay Fever
Interview, observation
Signs and Symptoms of Hay Fever
Similar to a cold, photophobia, tearing, blurry vision, itchy eyes, swelling of the eyes, inflammation and clear colorless drainage, can’t breathe through the nose, ears full, sneezing, coughing, headache, nosebleeds
Treatment of Hay Fever
Antihistamines, decongestants (not long term), corticosteroids, analgesics
Avoid the allergen
Hot packs over facial sinuses
Acute Rhinitis
Common cold
Characterized by edema, swelling of the nasal mucosa
Viral in origin
Signs and Symptoms of Acute Rhinitis
Thin, serous nasal exudates
Productive cough
Sore throat, fever
Muscle aches, fatigue and loss of appetite
Dyspnea, congestion
Red and swollen throat