PAEA Book Flashcards
(365 cards)
NY heart associated functional classification of heart disease
I-no limitation no fatigue dyspnea or angina pain
II- slight limitation of physical activity results in symptoms
III- marked limitation of physical activity; comfortable at rest but less ordinary activity causes symptoms
IV- Unable to engage in any physical activity
Mechanism of hypovolemic shock and 3 examples
Decreased iV volume
Hemorrhage
Loss of plasma
Loss of fluids and electrolytes
Cardiogenic shock and causes
Defective cardia output, cycle of output
Can be the cause of MI Dushythmias HF Defects in the septum Myocarditis Hypertension Cardiac contusion Rupture of ventricular septum Cardiomyopahties
What is and examples of obstructive shock
Blockage of blood flow into or out of the heart
Tensión pneumothorax
Pericardial tamponase
Obstructive valvular disease
Pulmonary problems
Massive PE
Examples of distributive shock
Increase/excessive vasodilation
Examples include Septic shock SIRS Neurogenic shock Anaphylaxis
Third space sequestration would be an example of
Hypovolemic shock
Also see this with loss of plasma or shock caused by hemorrhage
Loss of fluid and electrolyte Balcance
Anything that depletes intravascular volume
What is neurogenic shock
This is a type of distributive shock that is also seen with SEPSIS and anaphylaxis
Spinal cord injuries and adverse effects or spinal anesthesia
This occurs from interruption of the sympathetic vaso motor input after a high cervical spinal cord injury
Can have arteriolar dilation
Can have venodilation causes pooling in the venous system and decreases venous return and cardiac output
How would neurogenic shock differ from other types of shock in terms of symptoms
Extremities are often warm in contrast to the usual sympathetic vasoconstriction induced coolness in hypovolemic or cardiogenic shock
Treatment for neurogenic showcase
Similar to relative hypovolemic and the loss of vasomotor tone
Excessive volumes of fluid may be required to restore normal hemodynamics if given alone
Once rule out hemorrhage can use nerepi or a pure alpha adrenergic agent (phenyephrine) may be necessary to augment vascular resistance and maintain an adequate MAP
Hypoadrenal shock
The normal host response to illness, operation, or trauma requires that the adrenal glands hypersecrete cortisol in excess of that normally required
This happens in the settings in which unrecognized adrenal insufficiency complicates the host response to the stress induced by acute illness or major surgery
This can be seen with administration of chronic steroids
Diagnoses of adrenal insufficiency is established with
ACTH stimulations test
What is the treatment of hypoadrenal shock
Dexamethasone sodium phosphate 4mg IV
This agent is preferred if empiric therapy is required because, unlike hydrocortisone, it does not interfere with the ACTH stimulation test
Septic shock is post commonly asssociated with
Gram-negative and gram-positive sepsis in persons at extrémese of age and persons IC
Do studies for a pt is suspected shock
CBC Type cross Electrolytes Glucose Urinalysis Serum creatinine
These help in determining the cause
ECG, CXR, cardiac biomarkers, BNP
LACTATE
What level of lactic acidosis indicates hyperlactatemia
Metabolic acidosis
Anaerobic metabolism
2-4
What level of lactic acidosis comes with a 75% mortality
5
Inotropes for shock
Dobutamine
Dopamine
Epinephrine
What are the preSSRIs commonly used in shock
Norepinephrine
Vasopressin
Dopamine
Phenylephrine
Definition of orthostatic HTN
Greater than a 20 mm hg drop in systolic BP or a drop of greater than 10 mm Hg in diastolic between supine and sitting
If no change in pulse occurs with orthostatic HTN consider
Medication cause
Parkinson
Shy-drager syndrome
Peripheral neuropathies (diabetic autonomic neuropathy)
How is hypertensive urgency defined
Systolic BP greater than 220 or systolic greater than 125
How is a hypertensive urgenytreated
Must be treated within hours
First line is nicardipine pls esmolol
Nitroglycerin plus beta blocker (if myocardial ischemia is present)
Alternative HTn treatment Enalapril Diazoxide Trimethaphan Loop diuretics
What is the treatment for hypertension in pregnancy
Nicardipine or labetelol
What is HTN emergency
Strikingly elevated above 220 or above 130 with sign
Encephalopathy Nephropathy Intracranial hemorrhage Aortic dissection Pulmonary edema Unstable angina MI Preeclampsia Eclampsia