RESP asthma, CF, pulmonary htn, infections

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1
Asthma def
recurring episodes of airway obstruction
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S/S of asthma
wheezing, chest tightness, cough, increased expiration
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late signs of asthma
low ox, decreased res effort, low LOC, tachycardia
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TRIAD of asthma characteristics
mucus secretion, bronchospasm, inflammation
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RF for asthma
female, smoking, SGA, diet, infections, exercise, sulfur oxide, pollution/allergen
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What ABG signifies asthma
hyperventilation leads to RESP ALKALOSIS that eventually goes to RESP ACIDOSIS
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How do you dx asthma
spirometry measures how fast air comes out of lungs, it is usually decreased by 50%
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Asthma 1st line treatment
inhaled Beta2 agonists (albuterol xopenex)
anticholinergics (atrovent)
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Asthma second line tx
Mg sulfate, Singuilar, epi, theophylline, terbutaline
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long acting asthma MED
corticosteroids (inhaled) and severent
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Cystic Fibrosis def
protein in charge of transporting chloride is dysfunctional which makes mucus thick, sticky
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What organs does CF affect
lungs and GI (pancreas, liver, salivary glands), and testes
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Complications of CF
pneumothorax, arterial erosion, hemorrhage, ARF
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What is #1 cause of death in CF Pt
80% die from ARF
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Tx of CF
enteral nutrition for enzymes, mucolytics, chest physiotherapy, and antibx in acute infections
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Pneumonia def
acute inflammation caused my infectious agent leading to alveolar consolidation leading to immune system being overwhelmed in lower lobes
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types of pneumonia
Community acquired, ventilator acquired, HAP/HCAP, Immunocomprimised, Aspiration
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RF for pneumonia
intubation, NG tube, old age, smoking, COPD, anesthesia, trauma, HF, metabolic acidosis, ETOH use, alterations in breathing
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Diagnosing Pneumonia
CXR shows consolidation, sputum specimen, lung assessment: crackles, rhonci, wheezing
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Pneumonia S/S
low ox, tachycardia, pyrexia, dehydration, productive cough, altered LOC
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Aspiration pneumonia pH of 2.5 +
not likely to lead to pneumonia
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aspiration pneumonia pH <2.5
likely to lead to pneumonia
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MED tx for pneumonia
antibx and bronchodilators
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TB def
infection caused by myobacterium tuberculosis a rod shaped microorganism
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What precautions are taken in TB
droplet, n95, negative pressure room, notify health department
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RF in TB
immunocompromised, HIV, AIDS, poverty, crowded living
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Diagnosis of TB
Quantiferon gold blood test, skin/mantoux test, chest xray
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what vaccine gives a false positive for TB
Bacille Calmette Guerin Vaccine
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how does body fight against TB
isolates colonies (tubercules) and surrounds them in scar tissue
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Which TB MEDs are given for 11 months
  • rifampicin
  • pyrazinamide
  • isoniazid
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Nurse Imp in TB
-educate on SE of MED
-let them know importance of finishing cycle to prevent strains
-watch for liver toxicity
-RFP and INH are given for 11 months
-PZA are given for 2 mo
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What MEDs are ALWAYS given in TB
Rifampicin, Pyrazinamide, Isoniazid
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What labs do we watch in TB Pt
liver enzymes, platelets, uric acid
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How often are TB meds taken
daily
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What TB med is taken in strains
ethambutol
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Common TB MED SE
neuropathy, GI issues, thrombocytopenia, joint pain
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S/S of TB
night sweats, weight loss, fever, coughing
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Pulmonary Hypertension def
narrowing of blood vessels in lungs resulting in MAP > 25 in lungs
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how do you diagnose pulmonary htn
right heart catheter
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RF for pulmonary HTN
heart disease, portal htn, HIV infection, pregnancy, drugs, COPD
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Treatments for pulmonary HTN
calcium channel blockers, Prostacylin Vasodilator, Phosphodietase, ERA's, and LUNG TRANSPLANT
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Examples of Calcium channel blockers
nifedepine, ditiazem, amlodipine
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examples of ERA's
ambrisentan
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example of phosphodietrase
viagra
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example of prostacylin vasodilator
-flolan
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NURSE IMP of calcium channel blocker
watch for hypotension
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NURSE IMP of viagra
avoid nitrates due to hypotension
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NURSE IMP of prostacylin vasoldilators
very effective, short half life (2-3min)
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S/S of pulmonary htn
fatigue, JVD, edema
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