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FON exam 2
cardiovascular assessment
| Question | Answer |
|---|---|
| location of the heart | lies in the pericardial cavity in the mediastinum under the sternum and between the 2nd and 5th intercostal spaces |
| 2/3 of the heart lies | to the left of the midline of the sternum |
| anatomy of the heart | hollow muscular organ a little larger than your fist |
| main functions of the heart | deliver oxygen and nutrients to body cells, circulate waste products so they can be metabolized and/or removed, maintain perfusion to organs and tissues |
| how to start CV assessment | intro yourself, explain what you need to do, call pt by last name, provide safety and privacy, allow pt to tell you things |
| anterior | front of body |
| posterior | back of body |
| medial | toward the midline of the body |
| lateral | describes something that is further away from the midline than something else |
| intermediate | between two structures |
| inferior | means away from the head, or lower/under |
| superior | means toward the head of the body, or higher/above |
| sternal angle or angle of louis | useful landmark to start counting ribs (2nd rib/2nd ICS) |
| common or concerning symptoms: health Hx | chest pain or discomfort pain or discomfort radiating to the neck, left shoulder or arm and back arrhythmias: skipped beats, palpitations dyspnea cough edema nocturia fatigue cyanosis pallor |
| sign is | objective |
| symptom is | subjective |
| assessing cardiac symptoms: chest pain | angina pectoris, coronary artery disease, MI, acute coronary syndrome |
| assessing cardiac symptoms: palpitations | heart skipping, racing, fluttering, pounding |
| assessing cardiac symptoms: SOB | dyspnea, orthopnea, paroxsymal nocturnal dyspnea |
| assessing cardiac symptoms: cough | heart failure, fine crackles and rales |
| assessing cardiac symptoms: edema | dependent edema, congestive heart disease, hypoalbuminemia |
| assessing cardiac symptoms: dependent edema | clears at night when pt is supine |
| assessing cardiac symptoms: fatigue | signals heart is not adequately supplying oxygen |
| assessing cardiac symptoms: cyanosis or pallor | poor oxygenation of body |
| past hx | Heart problems? Heart disease? Murmurs? Congenital heart disease/defect? Rheumatic fever? Hypertension? Elevated cholesterol or triglycerides? Diabetes? |
| family hx | coronary artery disease? HTN? sudden death younger than 60? stroke? diabetes? obesity? |
| lifestyle habits | nutrition (typical diet) smoking alcohol exercise medications: prescribed and over the counter drugs |
| where to start? | Past medical or surgical history is a good place to start assessment. Hypertension-High blood pressure? Has anyone told you of any heart problems? Are you on any medicines for your heart? |
| S & S needing your attention | pain or discomfort in your chest or back? more tired than normal recently? noticed a cough? dizziness or syncope? difficulty with breathing? are you using more pillows at night? why? wake in the middle of the night? Why? |
| orthopnea | dyspnea when lying down - 2 pillow, 3 pillow orthopnea, or sleeps in chair |
| PND | paroxysmal nocturnal dyspnea |
| if they have pain, remember to ask: | where? what does it feel like? does it move or radiate anywhere else? when did it start? pain scale have you had this before? associated symptoms? |
| remember every pt is different! | report pain differently, BUT recent report indicated that about 90% of people report some amount of chest pain if they are having an MI |
| pain scales | basic morning assessment, may use 0-10 may use 1-10 when pt already stated they have pain pt may not be able to put a number on the pain |
| if numeric pain scale is not working | use wong-baker pain scale (faces) |
| physical assessment: edema | any swelling? |
| edema | excess fluid in interstitial tissue rings or shoes too tight? |
| what could edema be from | heart failure, liver failure, low albumin which is essential for maintaining osmotic pressure (keeps fluid where is should be) |
| normal albumin level | 3.5-5 g/dL |
| causes of edema | excessive retention of water and Na |
| if the heart is not pumping well... | the hydrostatic pressure exceeds the osmotic pressure and fluid is nor reabsorbed from interstitial spaces as well |
| 3rd spacing = | 3 spaces for fluid: in the vessels, in the cells, in between (3rd space) |
| pitting edema grading scale | 1+, 2+, 3+, 4+ when charting in the hospital, look for the organizational description for edema |
| 1+ | barely there (2mm) |
| 2+ | indentation less than 4mm , still see contour of ankle |
| 3+ | indentation greater than 6mm, several seconds - obvious |
| 4+ | indentation greater than 8mm, very marked - minutes |
| edema from CV - not only in legs, what if pt is on bed rest? | scrotal edema, sacral edema, DEPENDENT EDEMA (wherever gravity takes the fluid) |
| non-pitting edema | usually not CV but still assess |
| non-pitting edema examples | disorders of the lymphatic system such as lymphedema, pretibial myxedema, periorbital edema, low albumin/leaking of proteins into tissue |
| disorders of the lymphatic system such as lymphedema | a disturbance of the lymphatic circulation that may occur after a radial mastectomy or it can be congenital |
| pretibial myxedema | swelling over the shins that occurs in some pts with hyperthyroidism |
| an abnormal amount of protein fluid collects in the tissues of the extremity | stagnant, protein rich fluid causes tissue channels to increase in size and number, reduces oxygen through the transport system, provides a culture medium for bacteria interferes with healing |
| physical assessment: VS and pulses | add more detail to your VS assessment - rate, rhythm, regular or irregular |
| what is the apical pulse and radial pulse rates are different | heart beats (apical rate) faster than the peripheral pulse rate |
| lower radial pulse than apical rate = | pulse deficit, caused by arrhythmia/irreg pulse |
| apical pulse-peripheral pulse = | pulse deficit |
| report VS issues using | SBAR - situation, background, assessment, recommendation |
| dorsalis pedis pulse | check the top of the foot just lateral to the tendon for the big toe if not there, move laterally and/or up and down a bit if still not there, get a doppler |
| when checking dorsalis pedis pulse, might as well check | posterior tibial |
| doppler to find pulses | if not able to find, check equipment, more gel, ask for help |
| capillary refill | this shows checking on the fingers, circulation changes in the feet well before it changes in the hands |
| <2 seconds | best |
| <3 seconds | still considered normal |
| palpating the chest wall (not always done) | using the finger pads, palpate for heaves or lifts from abnormal ventricular movements using ball of hand, palpate for thrills or turbulence transmitted to the chest wall surface by a damaged heart valve |
| where to palpate the chest | aortic, pulmonic, left parasternal, and apical areas |
| apical pulse | one you hear with a stethoscope, technically should be over apex of heart but should at least be on the chest |
| listening to the heart: auscultation | listen in all four areas for S1 and S2 using the diaphragm of the stethoscope, then listen with bell |
| diaphragm is best used for | detecting high-pitched sounds like S1 and S3 and also S4 and murmurs |
| bell is best used for | low-pitched sounds like S3 and the rumble of mitral stenosis |
| S1 and S2 | normal heart beat sounds |
| S1 sound | LUB, closure of the mitral and tricuspid valves at the start of systole |
| S2 sound | DUB, closure of the aortic and pulmonary valves at the end of systole |
| S3 and S4 | extra heart sounds |
| sound of murmur | longer |
| grading murmurs | 1-6 |
| 1 | slightest possible murmur, frequently overlooked |
| 2 | slight murmur, should not be missed under optimal conditions |
| 3 | moderate murmur, no palpable thrill |
| 4 | loud murmur with a palpable thrill |
| 5 | very loud murmur with an easily palpable thrill |
| 6 | extremely loud murmur, can be heard with a stethoscope not even touching the chest wall, EXTREMELY RARE |
| blood flow through hear | RA, RV, pulmonary artery, lungs, LA, LV, aorta |
| valves | mitral and tricuspid valves are a set, aortic and pulmonic valves are a set, WORK AS PAIRS! |
| S1 is the closure of | the atrioventricular valves as the ventricular pressures exceed atrial pressures at the **beginning of systole** |
| S1 is normally | a single sounds because mitral and tricuspid valve close occurs almost simultaneously |
| S2 is | beginning of diastole |
| diastole and systole are | the two phases of the cardiac cycle |
| when do diastole and systole occur | as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the bod |
| systole occurs when | the heart contracts to pump blood out |
| diastole occurs when | the heart relaxes after contraction |
| S3 is when there is | too much blood in the atrium, ventricle is forced to dilate |
| S3 can be heard with | bell over the apex |
| S3 heard in someone over 40 | pathologic |
| S3 sounds like | sloshing |
| S4 happen if | the ventricle is stiff and non-compliant, as in ventricular hypertrophy due to long standing hypertension |
| S4 can be heard with | bell at the apex |
| is S4 ever normal | no! |
| S4 can be remembered as | a stiff wall |
| stenosed stenotic stenosis | too tight, too small, obstructing blood flow and you hear the turbulence, valves not opening enough |
| incompetent to regurgitation | valves not closing |
| JVD | jugular venous distention |
| laboratory data associated with CV | hemoglobin (Hb, Hgb) 14 plus minus 2 16 plus of minus 2 |
| H and H | hemoglobin and hematocrit |
| lab assessment tools: hematocrit | HCT, a measure of percentage of total blood volume made up of RBCs |
| normal HCT | should be about 40-50, males 42-52% and females 37-47% |
| low HCT | hemodilution, anemia, massive blood loods |
| high HCT | hemoconcentration due to blood loss/dehydration |
| lab assessment tools electrolytes | normal K+ = 3.5-5 mEq/L |
| high or low K+ | can kill |
| K+ usually works with | Na, if Na goes up, K goes down |
| non acute labs = risk assessment | HDL, the higher the happier |
| <35 HDL | increased chance of CAD |
| >60 HDL | protection from CAD |
| total cholesterol | less than 200 mg/dL |
| ideal cholesterol to HDL ratio | 3:1 |
| LDL should be | less than 100 mg/dL |
| EKG monitoring is | another tool for assessment |