Exam 3 Flashcards
What is ventilation
- inflow & outflow of air from the aveoli
- chest wall movement
- work of breathing
What drug is an example of oral steroid therapy?
Cortisone
what are the general uses of oral steroid therapies like cortisone?
Rheumatoid Arthritis
systemic lupus erythematosus
inflammatory bowel disease
allergies
prevention of allograft rejection
What is compliance referring to ineffective airway slearance
- ability to expand bronchioles & let air in
- ability to expand alveoli & bronchioles
Primary - anti-inflammatory uses for cortisone?
Immunosuppressive actions
sodium retention
potassium loss
Cortisone- Adverse Effects
-adrenal insufficiency
-osteoporosis
- infections
- diabetes
-muscle wasting
-cushing’s syndrome
-fluid retention
-growth retardation
-mood swings
-cataracts/glaucoma
-peptics ulcers
-hypokalemia
Nursing interventions for cortisone Adverse effects
-monitor K+ levels, blood sugars, fluid retention, osteoporosis,
gastric ulcers, infection
-nursing actions- increase k+ intake, prevent infection, increase calcium intake
- teaching- DO NOT STOP ABRUPTLY, inform ab mood swings, take with food, no NSAIDS, may need to increase dose during times of increased physiological stress
What factors affect compliance?
What factors affect ventilation
What is diffusion
movement of gases from GREATER pressure to DECREASED pressure
What factors affect diffusion
- decreased surface area
- thickness of alveoli membrane
- perfusion to the alveoli
What is a methylxanthine?
bronchodilator that relaxes smooth muscle of bronchi
Describe transportation of Co2 & Co2
O2 combines w/ hemoglobin & carried to the tissue
What factors affect transportation of O2 & Co2
- decreased cardiac output
- decreased hemoglobin
What are you looking for when you are assessing respiratory status
chest wall expansion, breathing pattern & lung sounds
Considerations for methylxanthine administration
remember caffeine is in this category (their cousin)
-not administered by inhalation, not active via this route
- theophylline: oral
-aminophylline: IV
Symptoms of acute hypoxia
vital sign changes
What is total lung volume
volume of air the lungs can move
What is total lung capacity
how much more air you can get in if you try
what is the narrow TI (therapeutic index) and toxicity of methylxanthines?
don’t give very often due to narrow TI
NTI: plasma level 10-20mcg/ml, as low as 5 mcg/ml
toxicity: above 30 mcg can have arrhythmias& seizures
What is an xray looking for
- fluid in chest
- mass
- broken ribs
What is normal body flora?
bacteria inhibit healthy humans- bowel, upper respiratory, skin, vaginal vault
What are the lung scans?
CT, VT - airflow & blood flow in lungs
What is a lung scan looking for
embolism
What is and endoscopy
- pt sedated
- scope down trachea w/ camera - diagnostic or therapeutic
What is thoracentesis
removal of fluid in pleural space
What are ABGs (arterial blood gases) drawn for
to see how much oxygen & carbon are in the lungs
What are Sputum Specimens
- collected in AM
- before eating
- looking for bacteria causing the issue to see if theres an infection
- can do sensitivity - which antibiotics to give pt
- hard to obtain
What is the expected range of pulse oximentry
95-100%
What is an acceptable level of pulse oximetry
91-100%
What affects a pulse ox reading
- temp of pt
- nail polish
- poor perfusion to extremities
If pulse ox is below 91& what interventions should the nurse do
- check the pt
- check the sensor
Nursing interventions for Respiratory System
- monitor & check S&S of hypoxia
- check lung sounds
- do diagnostic tests
- check breathing pattern
what are the lines of defense against infection?
- individual immunity
- nutrition
- anatomical
- biochemical
- mechanical
- immune system status
What is white blood cell function in infections?
WBC (leukocyte) = 6,000-9,000
neutrophils: first acute infections within 24hr
eosinophils: allergies
basophils: healing
Lymphocytes: late (weeks)
Monocytes: chronic (months)
What is the local reaction for an inflammatory (itis) reaction?
redness& warmth, edema, pain
What percentage is an emergency for pulse ox
below 86%
What percentage is life threatening for pulse ox
below 80%
Nursing actions for the Respiratory System
- airway maintenance : open airway
- positioning pt: ambulate, elevate HOB
What pt teaching would you do to a patient who has decreased breathing pattern/lung sounds
- stop smoking
- do breathing exercises
- increased effective cough
- med usage
What are the major causes of airway obstruction
- bronchial smooth muscle contraction
- mucous hypersecretion
- inflammation
- infection