cardiovascular emergencies Flashcards
Aspirin: Indication
New onset chest pain suggestive of acute myocardial infarction. Sign and symptoms suggestive of recent cerebrovascular accident.
Aspirin: class
platelet inhibitor, anti inflammatory agent
Aspirin: contraindication
Hypersensitivity and is relatively contraindicated in patients with active ulcer disease or asthma.
Aspirin: Dosage and administration
81mg-325mg PO
Largest artery in the body:
The aorta begins at the top of the left ventricle, the heart’s muscular pumping chamber. The heart pumps blood from the left ventricle into the aorta through the aortic valve. Three leaflets on the aortic valve open and close with each heartbeat to allow one-way flow of blood
Layers of the heart:
Pericardium: the membrane enclosing the heart
Fibrous Pericardium: external layer of the pericardium, consisting of dense fibrous tissue.
Parietal Pericardium (parietal layer) : It lines the inner side of the fibrous pericardium and is difficult to separate from the structure.
Space: the potential space between the parietal and visceral layers of the pleura
Visceral Pericardium ( visceral layer) : It adheres to the cardiac surface.
Myocardium (muscle layer)
Nitroglycerin: class
Vasodilator
Nitroglycerin: Indications
Acute angina pectoris, ischemic chest pain, hypertension, CHF, and pulmonary edema
Nitroglycerin: Contraindications:
Hypotension, hypovolemia, syncope, reflex tachycardia, flushing, nausea, vomiting, diaphoresis, and muscle twitching
Nitroglycerin: Dosage and administration:
Adult: Tablets: 0.4 mg SL; may repeat in 5 minutes to a maximum of 3 doses
Adult: Paste: 1/2 - 1 inch topical
Peds: not recommended
Tricuspid valve:
This valve is located between the right atrium and the right ventricle.
Pulmonary valve
The pulmonary valve is located between the right ventricle and the pulmonary artery.
Mitral valve
This valve is located between the left atrium and the left ventricle. It has only 2 leaflets.
Aortic valve
located between the left ventricle and the aorta.
Systolic blood pressure: definition
Is the amount of pressure that blood exerts on vessels while the heart is beating.