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222 Exam 2
Chapter 41
| Question | Answer |
|---|---|
| Deoxygenated blood supply's the ? | Lungs (pulmonary artery) |
| Oxygenated blood supply's the? | Heart (pulmonary veins) |
| Venilitation | movement of air in and out of lungs |
| Compliance | Ability to expand and distend lungs |
| Diffusion | movement of gasses |
| Respeiration | movement of O2 and CO2 |
| Perfusion | movement of blood into and out of lungs to organs and other tissues of the bod |
| Systole and diastole | s-contraction phase. d-heat at rest and filling up |
| Afterload | resistance of ejecting blood from left ventricle (not waiting to eject into aorta) |
| Preload | Amount of blood from end of ventricular diastolic (the amount after filling up the LV) |
| Stroke volume | Amount of blood from ventricle while contracting. Normal 50-75 mL/contraction (how much blood comes out the LV) |
| Cardiac output | Blood ejected from Left ventricle 4-6 liters per minute (how much blood leaves the left ventricle) |
| Myocardial contraction | Ability to squeeze blood from ventricles |
| SA nodes | Primary pacemaker |
| AV nodes | kicks in if AV node fails |
| P wave | atrial contraction |
| QRS wave | Ventrical contraction |
| T wave | atrial repolarization |
| Myocardial ischemia/ angina pectoris | heart is deprived from blood causing pain in chest |
| MI/ Acute coronary Syndrome (ACS) | Blood flow is completely blocked and tissue becomes necrotic |
| Impaired valvular function | causes aortic stenosis (narrowing valve) |
| Left sided heart failure is bad because? | increase preload and increasing afterload- too much blood filling up in ventricle and not contracting out to the aorta |
| Right sided heart failure is bad because? | venous congestion and can not pump to the lungs |
| Atrial fibrillation | both atriums not contracting, irregular beats, colt formation breaking away to brain causing necrosis |
| Ventricular Fibrillation | Irregular or chaotic rhythm, ventricles quivering |
| Hypoxia | inadequate oxygen causing problems breathing |
| Hypoventilation | Cant get enough oxygen in or out. collapse of the alveoli, irregular cardiac rhythm, mental confusion, coma |
| Hypercapnia | elevated carbon dioxide |
| Hyperventilation | Increased respiration rate, low carbon dioxide. Use and paper bag Anxiety, lightheaded, tinnitus- ringing in the ears |
| how does smoking effect life style factors? | Nicotine increases plaque and vasoconstriction increasing resistance |
| How do opioids affect oxygenation? | decreases respiratory rate and depth |
| How does heat affect oxygenation? | vessel dilation causing hypotension |
| How does cold affect oxygenation? | vaso constriction causing hypertension |
| Kussmal's breathing pattern | breathing to fast |
| Cheyne stokes breathing pattern | long periods of not breathing and tachypenia |
| orthopnea | difficulty breathing laying down |
| Insidious | slow |
| transthoracic echocardiography | ultrasound of the heart |
| Thoracentesis test | Pulling the fluid out the plural space with a needle |
| Impaired gas | caused by destruction of the alveolar walls and low oxygen saturation and dyspnea |
| Impaired airway clearance | caused by bronchoconstriction and increased production of mucus |
| Activity intolerance | ex chronic bronchitis. can not walk more then 20 feet without sitting down to rest |
| Acute chest pain | damage to the heart muscle and hight pain level increased respiratory rate and diaphoresis. diagnosed with MI |
| Ineffective tissue prefusion | caused by decreased oxygen levels in the blood, fatigue with exercise and cyanosis |
| How to help dyspena? | inhale through nose and out through mouth, elevate head |
| Cascade coughing | big slow deep breathes and hold then cough out |
| Huff coughing | clears central airway |
| Incentive spirometry | deep breathing (mom had to use) |
| Converting from liters to oxygen | _x4+20=%O2 |