ATI: Chapter 24 - TB Flashcards
A pulmonary embolism (PE) occurs when a substance (solid, gaseous, or liquid) enters venous circulation and forms a ______ in the pulmonary vasculature.
blockage
____ originating from venous thromboembolism, also known as deep vein thrombosis (DVT), are the most common cause.
Emboli
Tumors, bone marrow, amniotic fluid, air and ______ also can become emboli.
foreign matter
Increased ______ to pulmonary tissue and impaired blood flow can result from a large embolus. A PE is a medical emergency.
hypoxia
Prevention, rapid recognition, and treatment of a PE are essential for a _______ outcome.
positive
Promote smoking _____.
cessation
Encourage maintenance of appropriate _______ for height and body frame.
weight
Encourage a healthy diet and ______.
physical activity
Prevent DVT by encouraging clients to do leg exercises, wear compression stockings, and avoid ______ for long periods of time.
sitting
A risk factor for a pulmonary embolism includes long-term _______.
immobility
A risk factor for a pulmonary embolism includes the use of _______ and estrogen therapy.
oral contraceptives
A risk factor for a pulmonary embolism includes women who are _____.
pregnant
A risk factor for a pulmonary embolism includes people who use ______.
tobacco
A risk factor for a pulmonary embolism includes hyper_________.
coagulability (elevated platelet count)
A risk factor for a pulmonary embolism includes _______, especially orthopedic of the lower extremities or pelvis.
surgery
A risk factor for a pulmonary embolism includes _______ catheters.
central venous
A risk factor for a pulmonary embolism includes heart failure or chronic ________.
atrial fib
A risk factor for a pulmonary embolism includes__________ anemia (sickle cell)
autoimmune hemolytic
A risk factor for a pulmonary embolism includes ______ fractures.
long bone
A risk factor for a pulmonary embolism includes trauma, ________, and advanced age.
cancer
Older adult clients have _______ pulmonary reserves due to normal lung changes, including decreased lung elasticity and thickening alveoli. Older adult clients can decompensate more quickly.
decreased
Certain pathological conditions and procedures that predispose clients to ______ formation (peripheral vascular disease, hypertension, hip and knee arthroplasty) are more prevalent in older adults.
DVT
Many older adult clients experience decreased physical activity levels, thus predisposing them to DVT formation and _______.
pulmonary emboli
Expected findings of a PE include: (7)
anxiety feelings of impending doom pressure in chest pain upon inspiration and chest wall tenderness dyspnea and air hunger cough hemoptysis
Physical findings of a PE include:
pleurisy pleural friction rub tachycardia hypotension tachypnea adventitous breath sounds (crackles and cough heart murmur in S3 and S4 Diaphoresis low grade fever decreased oxygen saturation levels (expected reference range is 95% to 100%), low SaO2, cyanosis Petechiae (red dots under the skin) over chest and axillae Pleural effsion (fluid in the lungs) Distended neck veins Syncope Cyanosis
_______ analysis is used to monitor hemoglobin and hematocrit.
CBC
As hypoxemia progresses, _______ occurs.
respiratory acidosis
Further progression leads to _______ due to buildup of lactic acid from tissue hypoxia.
metabolic acidosis
PaCO2 levels are _____ due to initial hyperventilation (respiratory alkalosis).
low
D dimer is _____ above expected reference range in response to clot formation and release of fibrin degradation products (expected reference range is 0.42 to 2.33 mcg/mL)
elevated
PE diagnostic procedures
Chest x ray and CT scan
Ventilation-perfusion scan
Pulmonary angiography
PE Lab Tests
ABG analysis
CBC analysis
D-dimer
_______ and ________ provide initial identification of a PE. A computed tomography (CT) scan is most commonly used. A chest x-ray can show a large PE.
chest x ray and CT scan
________ scan images show circulation of air and blood in the lungs and can detect a PE.
Ventilation-perfusion (V/Q)
_______ is the gold standard and most thorough test to detect a PE, but it is invasive and costly. A catheter is inserted into the ______ to visually see a PE>
vena cava
Pulmonary angiography is a ______ risk procedure than a V/Q scan.
higher
Verify that informed consent must be obtain for a ______.
pulmonary angiography
Monitor status (vital signs, SaO2, anxiety, bleeding with angiography) during and after the _______.
pulmonary angiography
Administer oxygen therapy to relieve hypoxemia and dyspnea. Position the client to maximize ______ (high-fowlers = 90 degrees)
ventilation
Initiate and maintain _____ access for patients with a PE.
IV
Administer medications as _____.
prescribed