Acute respiratory alterations Flashcards
Acute respiratory failure is diagnosed when the patient is unable to maintain adequate gas ______. Generally present with ______ or ______ or both.
EXCHANGE
HYPOXEMIA, HYPERCAPNIA
______ respiratory failure is defined as a PaO2 of 60 mmHg or less when patient is receiving oxygen at 60% or greater
HYPOXEMIC
Hypoxemia can result from inadequate ______ or poor ______.
VENTILATION
OXYGENATION
______ is defined as PaCO2 (>50mmHg) above normal in combination with acidosis
HYPERCAPNIA
Hypercapnia results from ______ failure which the body cannot adjust to
VENTILATORY
Acute Respiratory Distress Syndrome (ARDS) is a group of disorders with diverse causes but similar pathophysiology, symptoms, and treatment. Name causes (10)
SEPSIS, PNEUMONIA, TRAUMA, SHOCK, NARCOTIC OVERDOSE, INHALATION, BURNS, PANCREATITIS, ASPIRATION, SIRS, AND OTHERS
ARDS is sudden and ______. The chain of events leads to alviolar-capillary membrane damage and non-cardiac pulmonary ______.
PROGRESSIVE
EDEMA
ARDS S&S: Predisposing condition within ______ hours, symptoms progress, dyspnea, tachypnea, crackles, eventual cyanosis, respiratory alkalosis from initial increase in r_____ then respiratory acidosis, d_____ lung compliance and lung volumes, change in mental status from ______, CXR shows diffuse infiltrates, PAWP
48
RESPIRATIONS
DECREASED
HYPOXEMIA
OXYGEN
Complications of ARDS include nosocomial pneumonia, barotrauma, volume pressure trauma, stress ulcers, real failure, heart failure, DIC (disseminated intravascular coagulation)
Collaborative and nursing treatment for ARDS include oxygen >= PaO2 of 60 mmHg, mechanical ventilation with PEEP, extracorporeal membrane oxygenation, positioning, diuretics, antibiotics, TPN
Severe Acute Respiratory Syndrome (SARS) is spread primarily through ______. Symptoms include fever greater than 100.4, headache, muscle ache. After ______ days, dry cough and difficulty breathing. 80-90% recover.
DROPLETS
2-7 DAYS
Collaborative treatment for SARS includes i______, a______ medications, antibiotics, corticosteroids. 10-20% require mechanical ventilation. Risk of death increases with age and preexisting health conditions.
ISOLATION
ANTIVIRAL
Normal: 30 Y, 80 Y, COPD pH: 7.35-7.45 PaO2: 80-100, 70, 45-55 SaO2: 96-100, 95, 85-90 PaCO2: 35-45, 35-45, 50-60 HCO3: 22-26, 22-26, 26-30
R: Respiratory O: Opposite pH high, pCO2 low = alkalosis pH low, pCO2 high = acidosis M: Metabolic E: Equal pH high, HCO3 high = alkalosis pH low, HCO3 low = acidosis
______ are a very potent antibiotic group that destroys bacteria rather than inhibiting growth. Reserved for serious or life-threatening infections because they have toxic effects. Kills gram-negative and gram-positive bacteria.
AMINOGLYCOSIDES
(GENTAMICIN, TOBRAMYCIN, AMIKACIN)
Nephrotoxicity, Ototoxicity
Therapeutic drug levels are carefully monitored to give only as much drug as needed to reach therapeutic level.
How do we know what therapeutic antibiotic levels are?
Start with the MIC (minimum inhibitory concentration), report (AKA sensitivity report), compare MIC with SE from drug & patient condition, Select drug that will work at non-toxic levels, measure peak and trough
The maximum therapeutic response is called ______ level. The minimum therapeutic responses called ______ level.
PEAK
TROUGH
These are measured by using a blood sample at specified times before and after the drug is given.