Cardiogenic shock Flashcards
when should fluids be administered
Administer 0.9% sodium chloride IV if there are signs of poor perfusion, provided the patient has no signs or symptoms of pulmonary oedema and the primary problem is not dysrhythmia
when is meteraminol administered in cardiogenic shock
if the systolic blood pressure is less than 100 mmHg
name some causes of cariogenic shock
ū The most common cause is acute myocardial infarction.
ū Other causes include acute valve rupture, pulmonary embolism,
dysrhythmia (particularly VT), cardiac tamponade and myocarditis.
ū Commonly the patient will be pale, cold and tachycardic with signs and
symptoms of pulmonary oedema.
what causes cariogenic shock
the heart being unable to pump adequately:
Cardiogenic shock secondary to poor right ventricular function characteristics
- Occasionally cardiogenic shock is caused by inadequate right ventricular function:
ū The most common cause is an acute inferior myocardial infarction involving the right ventricle.
ū Shock is likely to respond to 0.9% sodium chloride IV.
Metaraminol is the preferred vasopressor because
it does not increase myocardial oxygen consumption and is less likely to cause tachycardia and/or tachydysrhythmia than adrenaline.
Cardiogenic shock secondary to poor left ventricular function charceterisitics
- The most common cause is an acute anterior, anteroseptal or anterolateral STEMI:
ū This is commonly associated with the development of pulmonary oedema.
ū Shock is unlikely to respond to 0.9% sodium chloride IV and this must be
administered with caution as it may make pulmonary oedema worse.