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is elevated with cardiac cell death. usually indicates an MI
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1 Components of the heart 2 metabolic syndrome
3 Creatinine kinase and troponin 4 Preload
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Terms in this set (129)
Components of the heart the pump
the electrical system
the vascular system
the blood volume
, serum lipid levels fats can clog blood vessels and decrease blood
flow. LDL should be less than 130. HDL greater than
45 males, 55 females. total cholesterol lower than
200. Triglycerides less than 160 males, females 135 or
less.
Serum Electrolytes can affect the conduction of the heart
Hemoglobin An iron-containing protein in red blood cells that
reversibly binds oxygen.
Creatinine kinase and troponin is elevated with cardiac cell death. usually indicates
an MI
Preload amount of blood and pressure in the ventricle at the
end of diastole. Increases due to increase of volume.
Afterload the resistance that has to be exceeded for the
ventricle to eject the blood during systole. Increases
due to HTN or vasoconstriction.
cardiac output heart rate x stroke volume
Lifespan considerations -HR goes down in older adults
-heart loses muscle tone which causes decrease of
cardiac output
-BP will trend up with age
-Irregularities in infants and children in common
-atherosclerosis is the build up of plaque in the
vascular walls. more common in older adults
-HTN typically elevates in older populations
African American and hispanic are more likely to develop chronic HTN and heart
populations diseases
Geriatric concerns -blood vessels are less elastic
-impaired valves due to stiffness causing a decrease
in CO
-Decreased baroreceptor response