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Pulm 3: ARDS
ARDS and Obstructive Airway Diseases
Question | Answer |
---|---|
What heart sounds are considered benign when there is no evidence of disease? | Split S1, Split S2 on inspiration, S3 in pt <40yo, quiet systolic murmur |
A young woman presents with amenorrhea, bradycardia, and abnormal body image. What is the diagnosis? | Anorexia nervosa |
A pt presents with a h/o intermitten tachycardia, wild fluctuations in BP, HA, diaphoresis, and panic attacks. What is the diagnosis? | Pheo |
What is the transfusion cutoff in ARDS pts? | Only if Hgb <7. Transfusion may increase risk of death in ARDS so you can't be aggressive. |
What kind of asthma am I?: no more than 2 daytime episodes/wk or no more than 2 nighttime episodes per month | Mild intermittent |
What kind of asthma am I?: 3-6 daytime episodes per week or 3-4 nighttime episodes per month | Mild persistent |
What kind of asthma am I?: Daily daytime episodes or >1 nighttime episode per week | Moderate persistent |
What kind of asthma am I?: continual daytime episodes or frequent nighttime symptoms | Severe persistent |
What is the exepected FEV1 with mild intermittent asthma? | >/= 80% (same as mild persistent) |
What is the exepected FEV1 with mild persistent asthma? | >/= 80% (same as mild intermittent) |
What is the exepected FEV1 with moderate persistent asthma? | 60-80% |
What is the exepected FEV1 with severe persistent asthma? | <60% |
What is the tx for mild intermittent asthma? | PRN albuterol |
What is the tx for mild persistent asthma? | PRN albuterol + LOW dose inhaled steroid. Can also add Singulair or cromolyn if needed. |
What is the tx for moderate persistent asthma? | PRN albuterol + MOD dose inhaled steroid. Can also add long agcting beta 2 agonist and/or theophilline. |
What is the tx for severe persistent asthma? | PRN albuterol + HIGH dose inhaled steroid + long-acting beta 2 agonist + PO steroid. Can also add singulair and/or theophylline. |
Name 3 dangerous side effects of theophylline. How would you treat them? | Hypotension, tachycardia, and seizures. Tx tachy with beta blockers and seizures with benzos. Phenytoin will NOT work for these types of seizures. |
Prolonged, nonresponsive asthma attack that can be fatal and should be treated aggressively. Dx? Tx? | Dx: Status asthmaticus Tx: bronchodilators, corticosteroids, O2, and possible intubation |
How would you manage a pt with an obstructive airway dz who develops a normal CO2 during an exacerbation? | Additional beta 2 agonists, supplemental O2, and possible ventilation as this signals impending respiratory failure. |
What is a normal PaO2:FiO2 ratio? | 300-500mmHg |
What PaO2:FiO2 ratio indicates a gas exchange deficit? | <300mmHg (normal is 300-500) |
What PaO2:FiO2 ratio indicates ARDS? | <200 (normal is 300-500) |
In a pt with pulmonary edema, how can pulmonary capillary wedge pressure (PCWP) distinguish ARDS from cardiogenic edema? | <18= non-cardiogenic cause (e.g., ARDS) >18= cardiogenic cause (e.g., pulmonary edema) |
WHat are the diagnostic characteristics of ARDS? | Acute onset, PaO2:FiO2 <200, B/L pulmonary infiltrates on imaging ("double white out" appearance), No evidence of cardiac origin (PCWP <18) |
What is the hallmark lung testing finding found in COPD? | Decreased FEV1/FVC ratio |
A pt has an FEV1/FVC of 40%. What medications are used in the daily management? | Inhaled steroids, long acting bronchodilators, PRN short acting bronchodilator, risk factor reduction (stop smoking!), annual flu and pneumococcal vaccines |
At what point do pts with chronic COPD qualify for home O2? | Any of the following: pulse ox <88%, pulmonary HTN, peripheral edema, or polycythemia. |
What is the goal O2 sat for a chronic COPD'er? | 90% |
What tx is proven to decrease morbidity and mortality in a COPD pt? | Supplemental oxygen |