释义 |
cardiac output
cardiac outputn. The volume of blood pumped from the right or left ventricle in one minute.ThesaurusNoun | 1. | cardiac output - the amount of blood pumped out by the ventricles in a given period of time; "a resting adult has a cardiac output of about three quarts a minute"flow rate, rate of flow, flow - the amount of fluid that flows in a given time |
Cardiac Output
cardiac output[′kärd·ē‚ak ′au̇t‚pu̇t] (physiology) The total blood flow from the heart during a specified period of time. Cardiac Output the quantity of blood ejected by the heart in one minute. It is equal to the product obtained by multiplying the systolic, or stroke, volume of blood ejected by the heart with each contraction (systole) by the number of contractions per minute (pulse frequency). cardiac output
output [owt´poot] the yield or total of anything produced by any functional system of the body. When measuring output for a patient record, the volume of urine, drainage from tubes, vomitus, and any other measurable liquid should be recorded.cardiac output the effective volume of blood expelled by either ventricle of the heart per unit of time (generally per minute); it usually refers to left ventricle output. It is equal to the volume" >stroke volume multiplied by the rate" >heart rate. Normal values are 4 to 8 liters per minute.decreased cardiac output a nursing diagnosis accepted by the North American Nursing Diagnosis Association, defined as a state in which inadequate blood is pumped by the heart to meet the metabolic demands of the body. The most obvious causative factors are pathologic changes in the heart's muscle or electrical conduction system, congenital heart defects, electrolyte imbalances (as of calcium or potassium), blood dyscrasias, and chronic pulmonary disease. Factors that could lead to changes in a patient's functional capacities because of decreased cardiac output might include physical exercise of a type or intensity that the patient cannot tolerate because of diminished oxygen supply, ingestion of large meals that place an added workload on the heart, obesity, retention of fluid (edema), hypovolemia or hypervolemia, emotional stress, and smoking.Patient Care. Nursing interventions are planned only after a thorough nursing assessment has been conducted to collect the relevant subjective and objective data. For example, it may be that the patient will need instruction and guidance in limiting sodium intake, reducing caloric intake to lose excess fat and maintain normal body weight, decreasing fat consumption to reduce blood lipid levels, or otherwise striving for dietary management of the problem.energy output the energy a body is able to manifest in work or activity.stroke output stroke volume.urinary output the amount of urine secreted by the kidneys. See also fluid balance.car·di·ac out·putthe amount of blood ejected by the heart in a unit of time (that is, the minute volume), usually expressed in liters per minute. Synonym(s): minute outputcardiac outputn. The volume of blood pumped from the right or left ventricle in one minute.cardiac output Cardiology A measure of blood flow through the heart to the systemic circulation, expressed as volume of blood/unit time or L/min, calculated as left ventricular forward stroke X heart rate; CO is calculated by Fick method–O2 consumption divided by the AV O2 difference, or by thermodilution, with Swan-Ganz catheterization. See Bradycardia, Tachycardia. car·di·ac out·put (CO) (kahr'dē-ak owt'put) The product of heart rate and stroke volume, measured in liters per minute; the amount of blood that is pumped by the heart in 1 minute. cardiac output The volume of blood pumped by the heart in one minute. It is equal to the stroke volume—the output per beat—multiplied by the number of beats per minute.cardiac output the total volume of blood pumped out by the heart per unit time.car·di·ac out·put (kahr'dē-ak owt'put) Amount of blood ejected by the heart in a unit of time in liters per minute (L/min). LegalSeeCOFinancialSeeoutputSee COUT See COUTcardiac output Related to cardiac output: cardiac cycle, cardiac index, ejection fractionWords related to cardiac outputnoun the amount of blood pumped out by the ventricles in a given period of timeRelated Words- flow rate
- rate of flow
- flow
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