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91 Cards in this Set

  • Front
  • Back
Risk factors for pulmonary embolism
immobility, surgery within the last 3 months (especially pelvic and lower extremity surgery), stroke, paralysis, hx of DVT, malignancy, obesity in women, heavy smoker, HTN
What is it called when an embolus from DVT turns into a PE?
Venous thromboembolism
Where do most PE's arise from?
DVT
Where do most lethal PE's originate?
femoral or iliac veins
What lobe of the lungs are most frequently effected by PE?
Lower lobes
What commonly dislodges DVT embolisms?
Standing or Valsalva maneuver
What is the classic triad for PE?
dyspnea, chest pain, hemoptysis
S/S of PE
cough, chest pain, crackles, fever, accentuation of the pulmonic heart sound, sudden change in mental status from hypoxemiaa
S/S of massive PE
hypotension, shock, pallor, severe dyspnea, hypoxemia. ECG and chest x-ray indicates rt ventricular hypertrophy due to pulmonary HTN.
S/S of medium PE
pleuritic chest pain, dyspnea, slight fever, productive cough with blood-streaked sputum

Tachycardia, pleural friction rub
S/S of small PE
none uncless pt has cardiopulmonary disease
Complications of PE
pulmonary infarction, pulmonary HTN
How long do pts live with PE?
May die soon or live for decades
Most frequently used test for PE
spiral CT then D-dimer/pulmonary angiography
Measures for PE
O2!! Maybe endotracheal tube.

Then turn, cough, deep breathe to prevent atelectasis
Rx management of PE
Clot busters like rPA in the acute, morphine for the pain

Then, start on Lovenox immediately and Coumadin for 3-6 months.
Surgical tx for PE
Embolectomy in acute (50% mortality rate)

Inferior vena cava filter later.
Positioning of PE pt
Semi-fowler's
What kind of pts have the highest incidence of DVT?
Spinal cord injury
ABG's with PE
hypoxemia and low PaCO2
Activity level with PE should be
limited
aPTT
25-40 sec
INR
Therapeutic is 2.0-3.0

Heart valve replacement 2.5-3.5
What does d-Dimer test indicate?
Amount of cross-linked fibrin fragments. Not normally in healthy people - found in stroke, DVT, acute MI, unstable angina, DIC, surgery up to post 2nd day, sickle cell crisis
BNP
<100
Troponin
<0.2-<1.0
How is the dosage of heparin calculated?
according to aPTT
How is the dosage of coumadin calculated?
INR
Hypoxemic respiratory failure is from...
Low blood perfusion

Ex. ARDS, PE, artery laceration, anatomic shunt, shock
Hypercapnic respiratory failure is from...
Not breathing enough

Ex. Asthma, COPD, brainstem injury, sedative overdose, thoracic trauma, MS
PaCO2
35-45
Patho of hypoxemic respiratory failure
V/Q (ventilation/perfusion) mismatch, shunt, diffusion limitation, hypoventilation
Most common disease to have V/Q mismatch
COPD, pneumonia, bronchospasm
Early signs of respiratory failure
Mental status changes (restlessness, confusion, combative)

tachycardia, tachypnea, mild HTN
What does a severe a.m. headache suggest?
Hypercapnia in the night
Later signs of respiratory failure
acidosis, dysrhythmias, angina, impaired renal function (edema, increased Na and uremia)
What does a change from tachypnea to bradypnea in an ARDS pt suggest?
Extreme fatigue and impending respiratory arrest
Inspiratory/expiratory ratio
Normal is 1:2

ARDS - 1: 3or4
What signifies moderate respiratory distress?
Severe respiratory distress?
Accessory muscle use

paradoxic breathing
Augmented coughing
For the pt to weak to effectively cough

Place hands below xiphoid process. As pt ends deep inspiration and begins expirations, move your hands forcefully downward, increasing abdominal pressure and facilitating the cough.
Rx for ARDS
Bronchodialators (albuterol) given at 15-30min intervals

Corticosteroids for chronic respiratory failure

IV diuretics and mitroglycerin (Lasix) to decrease pulmonary congestion. If a fib is present, Ca channel blockers and beta blockers

Antibiotics for infections

Sedatives for anxiety - monitor for respiratory and cardio depression
S/S of hypoxemic and hypercapnic breathing
Hypoxemic - tachypnea, cyanosis, paradoxic breathing

Hypercapnic - a.m. headache, pursed-lip breathing
Maintainence of fluid balance with ARDS
mild fluid restriction and diuretics as necessary
minimal leak technique with trach
inflate cuff until no leak is heard over trachea, then deflate 0.1mm of air
When should minimal leak technique not be used?
when there is risk of aspiration
How much should trach cuff pressure be?
<20mm Hg or <25mm H2O
Care of pt with inflated cuff
Monitor and record cuff pressure q8h.

Never insert decannulation tube until cuff is deflated.

Monitor for increased air pressures required for cuff.

When removing, have pt swallow grape juice or H2O with blue food dye and cough to assess aspiration.

Wait two days after trachostomy tube is inserted to use.

Deflate cuff daily to check integrity of the cuff. If it returns with air, cuff needs to be replaced.

Tubing good up to 1 month in pts on home mechanical ventilation
How often do you do trach care?
tid and prn
Ideal suction pressure
120-150mm with the tubing occluded
How long do you suction?
<10sec

Stop if HR decreases 20bpm, increases 40bpm, dysrhythmia, or SpO2 <90%
What do you instruct the pt to do before and during cuff deflation on trach?
Cough before, exhale during
What should the pt do during cuff inflation?
inhale
Trach dislodgement precautions
1. Keep replacement tube at bedside
2. Do not change trach tapes for at least 24 hours after trach insertion.
3. Physician does first tube change no sooner than a week after insertion.
What do you do if a trach becomes dislodged?
Grab retention sutures and try to put the new trach in. If you can't get it, cover ostomy with sterile saline gauze and resuscitate with Ambu bag until help arrives.
What kind of air do trach pts receive?
humidified
Nursing dx for trach tube
Ineffective airway clearance
Risk of aspiration
Impaired verbal communication
Ineffective self-health management
Risk for infection
How do you evaluate a trach pt for aspiration?
add blue food coloring to clear liquid or test tacheobronchial secretions for glucose
Decannulation of trach
When pt can swallow and breathe, tape the stoma closed with occlusive dressive. Pt splints stoma when coughing, swallowing, speaking. Surgical intervention is not required.
Tx for laryngeal polyps
Rest vocal cords and stay hydrated.
S/s of tension pneumothorax
tracheal deviation
If pt has confusion/agitation. What do you do first?
Assess VS and pulse ox FIRST!!!!
Causes of respiratory acidosis
Drugs, cardiac arrest, pulmonary edema, muscle weakness (MG, ALS, GB)
Causes of respiratory alkalosis
Hypoxemia, CNS disorder, high altitude, cirrhosis, anxiety, hyperventilation
Causes of metabolic acidosis
Ketoacidosis, GI loss (diarrhea), renal failure, sepsis, shock
Causes of metabolic alkalosis
Antacid OD, GI losses, blood transfusion, not enough K+
What stimulates COPD pt to breathe?
O2 level, so be careful with O2 administration b/c they lose the drive to breathe.
What is a biot respiratory pattern?
irregular
Rt shift
O2 less attracted to hemoglobin and more available to tissues. Elevated temp, acidosis
Lft shift
O2 more attracted to hemoglobin and less available to the tissues. Cold pt, shock, alkalosis
What do we never give tracheostomy pts?
STRAWS
How often do you do trach care?
Once a shift
What do you do before doing trach care?
Sterile procedure, suctioning
What hand do you use for suctioning?
Nondominant
When do you lavage when suctioning?
ONLY when there are THICK secretions
How often do we go down with suctioning?
As often as needed
How do you change trach ties?
Don't take off old ones before you put on the new ones
What concentration do you mix the NS and H2O2 for trach care?
50/50
Trach care, sterile or clean procedure?
Sterile in the hospital

Clean at home
How far do you insert the suction cathetar when suctioning?
Until you meet resistance and then withdraw 0.5in
What is a pneumothorax?
Air in pleural space causing collapsed lung
What is tension pneumothorax?
caused by rapid accumulation of air in pleural space. Causes shift away from the collapsed lung.
S/S of tension pneumothorax
Dyspneic, tachycardic, sharp chest pain, cough from irritated pleural, absence breath sounds, tracheal shift
Flail chest is defined as
2 or more rib fractures on same side, paradoxical respirations
Who sets up the suction for chest tube?
RN
When setting up suctioning for chest tube...
-20 sontometers of suction.

Pour sterile water in until it goes to 20 sontometer mark.

3 sontometers in middle chamber.

Clean procedure. Only adjust suction in wall. Low wall suction. GENTLE BUBBLING.

Colored dye where we put the water.
Size of chest tube...

Small for...
Large for...
Large tube for pus drainage

Small tube for air drainage
Type of gauze around chest tube
Vasoline gauze
Positioning of pleurisy
Lay on affected side to splint it
Most important intervention to prevent atelectasis
Cough, deep breathe
Pulmonary Fibrosis
Scar tissue in lungs from inflammation or irritant
Environmental or occupational exposure, smoking
Coal mine workers
Mesothelioma
Poor prognosis – terminal illness
Lung transplant option
Exertional dyspnea, clubbing, hard to oxygenate.
Sarcodosis
Granulomatous dz of unknown cause
Acute, sub-acute, or chronic
Most better with symptomatic treatment
20% develop lung damage
More common in African-Americans
NSAID's, methotrexate