EMT Recert Review Flashcards
Tuberculosis (S/S and protection)
Hemoptysis (coughing up blood) fever night sweats weight loss *N-95 or HEPA mask
Fowler’s Position
sitting 45-60° angle
Ligaments
connect bone to bone
Tendons
connect muscle to bone
Blood flow through heart
- Right atrium
- Right ventricle
- Pulmonary artery
- Lungs
- Pulmonary veins
- Left atrium
- Left ventricle
- Pumped to rest of body
Electrical flow of heart
- Sinoatrial (SA) Node
- Atrioventricular (AV) Node
- Bundle of His
- Purkinje fibers
Skin layers
Outermost: Epidermis
Dermis
Innermost: Subcutaneous
Aerobic metabolism
Metabolizing glucose in the presence of O2. Yields energy (ATP), heat, CO2, and water
Anaerobic metabolism
Metabolizing glucose w/o O2
Yields less heat/energy and more lactic acid leading to higher CO2 levels.
Higher CO2 leads to failure of sodium/potassium pump and cell death
Baroreceptors (definition and location)
Monitor blood pressure
Located in the aortic arch and carotid bodies
Chemoreceptors
Monitor O2, CO2, and pH
Central chemoreceptors
Located in brainstem
Monitor high levels of CO2 and low pH (hypercarbic drive)
Peripheral chemoreceptors
Located in the aortic arch and carotid bodies
More responsive to low arterial oxygen (hypoxic drive)
Cause symp nervous system stimul. (tachycardia, vasoconstrict)
Beta1 Receptors (Location and effects)
Located in the heart Ups HR Ups contractility AV Node conduction irritability?
Beta2 Receptors (effects)
relaxation of smooth muscle (bronchodilation)