Exam 3 Essays Flashcards
patho of pulmonary embolism
- complication of DVT occurring when 1 part of blood clot dislodges and is carried to the pulmonary artery
- occludes the vessel and obstructs blood flow to the lungs
- more common in postpartum period
estrogen influence of pulmonary embolism
- plasma fibrinogen (coagulation/clots) increase during pregnancy
- plasminogen (lysis of cells) does NOT increase
assessment of pulmonary embolism
- check resp. status and auscultate for crackles
- echocardiogram abnormalities may be seen
- pulmonary arteriogram used for diagnosis
treatment of pulmonary embolism
- anticoagulant therapy
- continuous heparin therapy until symptoms have resolved
- intermittent subcut heparin or oral anticoagulant therapy for up to 6 mos
s/s of pulmonary embolism
dyspnea, chest pain, cough, hemoptysis
physical signs of pulmonary embolism
tachypnea (RR >16), rales, tachycardia, fever, diaphoresis
what are the acute respiratory consequences of pulmonary emobolism
- increased alveolar dead space (diminished breath sounds)
- hypoxemia (decreased O2 sat)
- hyperventilation (decreased O2 and paresthesia)
who should pulmonary embolisms be actively sought in
pts with respiratory symptoms that are unexplained by an alternate diagnosis (high index of suspicion d/t nonspecific symptoms)
diagnostic features of pulmonary embolism
acute chest pain, syncope, abdominal pain, fever, productive sputum cough, wheezing, decreased level of consciousness
patho of deep vein thrombosis
- occurs in lower extremities, involvement varies but can extend from the foot to the iliofemoral region
- DVT occurs most often during pregnancy
estrogen influence of DVT
plasma fibrinogen (clotting) increased during pregnancy plasminogen (lysis) does not increase
s/s of DVT
unilateral leg pain, calf tenderness and swelling
redness and warmth
assessment of DVT
- inspect/palpate affected area, palpate peripheral pulse, check homan’s sign, measure/compare leg circumference
- assess for unusual bleeding, increased lochia, petechiae, hematuria, oozing from venipuncture
what is the status of homan’s in r/t DVT
positive homan’s needs more diagnostic testing, NOT performed because it can dislodge clot and cause PE
treatment of DVT
- anticoagulant therapy and continuous IV heparin, bed rest, affected side elevated and analgesic
- fitted with compression sock when allowed to ambulate
- IV heparin continued 3-5 days or until ss resolve
- oral anticoagulant therapy (warfarin/coumadin) continued 3 mos
- prothrombin time monitored at least monthly