3802 Test 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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Where is the site of production of blood cells? | In the bone marrow
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Where do all blood cells develop from? | A common stem cell
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What is bone marrow? | soft material that fills the core of bones
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What are the three functions of blood? | Transportation: oxygen, nutrients, hormones, and waste products. Regulation:fluid, electrolytes, and acid-base balance. Protective role:coagulation & fighting infections.
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Erythopoiesis | Production of RBC's
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Erythopoiesis is controlled by.... and synthesized by...? | Controlled by a hormone and synthesized by the kidneys
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What condition can cause anemia r/t the kidney? | Kidney disease
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What do RBC's do? | transport gases; maintains acid-base balance
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What are the functions of the spleen? | produces RBC's, filters out old RBC's, filters out microorganisms, stores lymphocytes and monocytes, and stores platelets.
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When does the spleen produce RBC's? | During fetal development
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What are lymph nodes? | Clumps of lymphatic tissue
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What are the functions of the lymph system? | Carries lympth fluid from the interstitial spaces to the blood, removes proteins and fat from the GI tract to the circulatory system, returns excess interstitial fluid to the blood.
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The liver acts as a ....? | FILTER
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What does the liver do r/t clotting? | Produces all the clotting factors necessary for homeostasis and blood coagulation.
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What FACTORS leading to anemia? | A deficiency in the number of RBC's, the quantity of hemoglobin, and/or the volume of packed RBC's.
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T/F? Anemia is a disease determined by lab findings. | FALSO! Anemia is NOT a disease. But CAN be determined by lab findings.
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Anemia can lead to ...what?...r/t the tissue? | anemia can lead to tisse hypoxia
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What are the three CAUSES of anemia? | decreased erythrocyte production, blood loss, increased erthrocyte destruction.
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Mild anemia indications what values r/t hemoglobin? | 10-14 hemoglobin levels indicate mild anemia
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Moderate anemia indicates hemoglobin values to be...? | 6-10
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Severe anemia shows hemoglobin values to be ranging at? | less than 6
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What S&S will a Pt be experiencing if they had mild to moderate anemia? | Pale, palpitations, and exertional dyspnea
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Severe anemic Pt's will experience which S&S? | Tachycardia, impaired thought processes, wt loss, lethargy, and anorexia.
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What age group is anemia most common in? | Older adults
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Since older adults experience anemia more commonly than others, what factors r/t age determine this fact? | Older adults experience chronic disease and poor nutrition. The aging process itself is a possibility. The general population can experience anema if they also have chronic disease and poor nutrition.
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Reticulocyte | immature RBC
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Hemolysis | RBC breakdown
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How long do RBC survive in the blood? | 120 days
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What is the normal percentage for neutrophils, basophils, eosinophils, monocytes, and lymphocytes? | N = 55-70%; L = 20-40%; Monocytes = 5-10%; E = 1-4%; B = 0-1%
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If the vascular system is affected by oxygen perfusion what S&S will a Pt experience? | HTN, syncope, or fatigue
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Cardiac Output | amnt of blood pumped by the heart ea minute
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What is the normal amnt of cardiac output in a resting adult? | 4-8 Liters
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What two factors r/t cardiac output? | Heart rate and stroke volume
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Stroke volume | amnt of blood the heart ejects with ea beat
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CO = ? X ? | Cardiac outout= HR X SV
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preload | amnt of blood in the ventricles at the end of diastole, before the next contraction; r/t amnt of "stretch" & amnt of contractility
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Afterload | peripheral resistance again which the L ventricle must pump
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Distribution of blood flow (arteries, capillaries, veins), tissue perfusion, and blood are a part of which system? | Vascular system
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what is tissue perfusion? | flow of blood through the body tissues
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How will a nurse assess for tissue perfusion? | By cking skin temp; color of skin, mucous membranes, nailbeds; capillary refill; palpation of pulses; edema; hair distribution; BP
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what are the three effects of aging r/t cardiac function? (Not physiologically) | Atherosclerosis, HTN, and cardiac failure.
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Due to cardiac failure, HTN, and atheroschlerosis from the effects of aging, what physiologically will happen to the body as a results of these normal changes? | decreased cardiac contractility, decreased response to increased work, decreased number of pacemake cells, valve incompetence, and increased BP.
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What are the unmodifiable risk factors of CAD? | age, gender, ethnicity, and genetic influence
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What are the modifiable risk factors that are not contributing that are associated with CAD? | increased lipids, HTN, smoking, obesity, physical activity
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Which are the contributing modifiable factors assoc with CAD? | Diabetes and stress
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Percentage of ppl who have primary HTN? What is cause? | 90-95% without identified cause
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What is the prehypertension guidelines? | 120/80-139/90
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With fatigue, subjective sensation leads to a loss of what? | Endurance
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How will fatigue affect the heart? | frequently indicates a worsening of the chronic cardiac process
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T/F: A nurse can use a 1-10 scale to assess. | TRUE
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Syncope | brief loss of consciousness
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Syncope may be... due to cardiac arrhythmia, or orthostatic hypotension? | vasovagal
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What does the heart needs after syncope? | A cardiac workup
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What are the findings that may indicate cardiovascular problems? | chest pain, fluid retention, irregular HR, fatigue, syncope, tenderness in calf, and altered neurological function
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