Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
48 Cards in this Set
- Front
- Back
What is the course of asthma |
Fluctuating course |
|
What are the symptoms of asthma |
Wheeze Cough Chest tightness Dyspnea |
|
What causes exacerbations |
1. Allergen (LMW penicillin, Organic Dander) 2. Non specific stimuli (cold air) 3. No identifiable source |
|
Which mediators cause bronchoconstriction |
1. Histamine 2. Methacholine |
|
Which drugs cause bronchoconstriction |
1. Beta antagonists (propranolol, metoprolol is Beta 1 selective but is still contraindicated) 2. NSAIDs (ASA) |
|
Which physicochemical agents cause bronchoconstriction |
Exercise Sulfer Dioxide Nitrogen Dioxide |
|
What kind of response does an allergen cause |
Cytokine/inflammatory mediator release causing mucus hypersecretion |
|
Is asthma predictable of unpredictable |
Unpredictable disease |
|
Which immunoglobulin is formed in an allergic reaction of asthma |
IgE |
|
What is the early response in asthma |
Within 10-15 minutes of exposure |
|
What is the late response in asthma |
6-10 hours after exposure by "late formed" mediators |
|
What time of the day are the symptoms of asthma bad |
Night time |
|
Why does a wheeze occur in asthma |
Intrathoracic pressure > intra-airway pressure (worth with forced attempts) |
|
What causes the dyspnea |
early = greater muscle effort later = hypoxemic effect from chemoreceptor |
|
What causes chest tightness |
Increased muscle effort and bronchocontriction |
|
What are the clinical signs of asthma |
1. Tachycardia 2. Tachypnea 3. Pulsus Parodoxus (not common)(drop in systolic blood pressure in inspiration of greater than 10 mmHg) 4. Hypoxemia (V/Q mismatch) 5. Decreased PCO2 6. Decreased FEV1; FEV1/FVC;peak flow (common to obstructive defects) 7. Bronchial Hyper-responsiveness (greater than normal drop in FEV1 with methacholine test) |
|
What does a rising PC02 in asthma suggest |
Decompensating asthma |
|
What are the Ddx for asthma |
1. COPD 2. CHF 3. GERD 4. Pneumonia 5. Pneumothorax |
|
What is the outpatient treatment of asthma |
Step 1: beta 2 agonist prn
Step 2: add daily ICS
Step 3: Add long acting beta 2 agonist and leukotriene agonist
Step 4: Add sustained released theophylline and oral corticosteroid |
|
What is the Emergency department treatment for Asthma |
First: assess ABC (any concern get MD)
Consider assessing with spiro as treatment begins
Oxygen
Salbutamol
Ipratropium amount empiric but often 3 doses
IV or oral corticosteroids
Consider antibiotic (if infection), aminophlline, magnesium |
|
Which patient with Asthma do you admit |
FEV1 < 40%; post treatment FEV1 < 60% They just don't look well |
|
Does a normal O2 saturation mean the asthmatic patient is stable |
NO |
|
What are some things you should keep tract of an asthmatic patient that means things are going wrong |
1. Normal or elevating PCO2 2. Not working as hard 3. No more wheezing 4. Dont mist pneumonia 5. Premature discharge 6. Do not under treat asthma 7. Be careful of beta blocker and NSAID/ASA |
|
What analogy can you use to describe ventolin |
Fire extinguisher |
|
What is the most common cause of COPD |
Smoking |
|
What happens in COPD |
1. Persistent inflammation of airway 2. Parenchymal destruction (less support of small air ways) 3. Expiratory airway collapse and air trapping (because of the destruction of the surrounding tissue i.d. parenchyma) 4. Hyperinflation 5. Increased lung compliance |
|
When is the cross sectional area the greatest and smallest in the bronchioles |
Greatest = inspiration Smallest = expiration (lumen gets supper small) |
|
What are the results of emphysema |
1. Decreased alveolar surface area 2. Decreased elastic recoil 3. Increased alveolar gas volume 4. Fewer capillaries |
|
What does pursed airway breathing allow |
Increase intra air way pressure to prevent collapse of the alveoli |
|
Which gender is COPD more common in |
More common in women than men EXCEPT older than 75 |
|
What are the symptoms of COPD |
1. Dyspnea 2. Cough 3. Sputum 4. Fever 5. Exercise Tolerance |
|
What causes the majority of COPD exacerbations |
Infection |
|
What can cause COPD exacerbation without an infection |
1. CHF 2. MI 3. PE 4. Pneumothorax |
|
What are the clinical signs of COPD exacerbation |
1. Visible Dyspnic 2. Cough 3. Flaired nasal 4. Pursed lip breathing 5. Accessory muscle use 6. Barrel chest 7. Intercostal withdrawing 8. Hyperresonant to percussion 9. Wheeze 10. Altered LOC 11. ABG: hypoxemic, hypercapnic, acidosis 12. Obstructive pattern pulmonary function test |
|
How do you manage COPD |
1. ABC 2. Consider intubation if unstable 3. Consider BiPAP 4.Oxygen If hypoxemic DO NOT withhold for fear of CO2 retention (afraid they won't be breathing out CO2 anymore) Deliver in controlled manner |
|
If a patients O2 sat is low should you ever withhold oxygen |
NO, always give oxygen in an acute setting because no oxygen will kill the patient. You can always titrate the oxygen downward to maintain sats in the low 90's if you are concerned about CO2 |
|
What is the management of COPD |
1. Salbutamol Nebulized 2. Ipratroprium Nebulized 3. Antibiotics 4. Systemic steroids
|
|
In DVT what is Virchows Triad |
1. Venous stasis (immobile person)
2. Endothelial Disruption (prior DVT's, orthopedic injury)
3. Hypercoagulable state (Drugs, malignancies) |
|
Which tests do you consider for DVT |
1. D-dimer 2. Ultrasound 3. Contrast venogram |
|
What is the treatment for DVT |
Anticoagulant (Wafarin, UFH, LMWH, NOAC) |
|
What is in the physical examine for DVT |
1. Increase temp in limb 2. Increase limb size 3. Low grade fever 4. Calf tenderness 5. Palpable cord 6. Homan's sign 7. Signs of pulmonary embolism |
|
What are the Signs and symptoms of Pulmonary Embolism |
1. Dyspnea 2. Tachypnea 3. Wheezing 4. Tacyhcardia 5. Pleuritic chest pain 6. Hemoptysis |
|
Where does pulmonary embolisms arise from |
DVT (thrombosis embolised into lungs) |
|
What is vital in regards to testing in PE |
Need to rule PE in or out |
|
What are the test for PE |
1. D-dimer (highly sensitive test to rule out PE)(not specific)(therefore can be positive without having a PE) 2. CXR (non sensitive) 3. ECG (non sensitive) 4. ABG (non sensitive) 5. V/Q scan (some what sensitive and specific) 6. CT-PE study (This is the gold standard)(Most sensitive and specific) |
|
What is the treatment for PE |
1. Prevention (get person walking right after surgery) 2. Oxygen 3. Anticoagulation 4. Thrombolytics (only to pt you think my code, or have a high risk) 5. IV filter |
|
What is high, moderate, and low probability for wells DVT score |
3 = high 1-2 = moderate 0 = low |
|
What is high, moderate, and low probability for Wells PE criteria |
High > 6 Moderate 3-6 Low < 2 |