Afterload Samenvattingen, Aantekeningen en Examens

Nitroprusside purpose - Answer- decreases preload and afterload by vasodilation (mainly afterload) Dobutamine mechanism of action - Answer- contractility Dopamine at a low-end dose "renal dose" - Answer- 0.5-4mcg/kg/min increases renal and mesentric perfusion Dopamine at a mid-range dose - Answer- 4-10mcg/kg/min increases contractility and heart rate Dopamine at a high-range dose - Answer- greater than 10mcg/kg/min vasoconstriction and increases BP Dopamine and Levophed inf...

how does inflammatory process contribute to reperfussion injury? Correct Answer: as oxygen is reintroduced it comes in contact with damaged proteins triggering inflammatory response how does oxidative process contribute to RI? Correct Answer: RAS causes impairment of cell membrane and pro-apotptoic cells release. making cell unstable what is primary Hypertension? Correct Answer: Essential or idiopathic, elevated BP without an identified cause, accounts for 90 - 95% of all cases of hyper...

Final Exam: NR283/ NR 283 Pathophysiology Final Exam| Questions and Verified Answers| New Update!! 2023/ 2024- Chamberlain Q: A pneumothorax is often caused by trauma (T/F) Answer: - true Q: Flail chest is an obstructive lung disorder (T/F) Answer: - false Q: Pulmonary edema can be caused by heart disease Answer: - true Q: What is the primary role of hemoglobin? Answer: - To bind oxygen to erythrocytes Q: What can cause anemia? Ans...

What to do first if patient has chest pain. - Answer- Rest! ECG changes in an acute MI - Answer- ST elevation in 2 or more contiguous leads. Ischemia d/t full thickness loss of muscle. EMERGENCY. Inferior leads - Answer- II, III, aVF. RCA occlusion. Septal leads - Answer- V1 & V2. Anterior leads - Answer- V1 - V4. LAD lesion. Lateral leads - Answer- V5, V6, I, and aVL. Circumflex lesion. Cardiac enzymes - Answer- Troponins, CK-MB, and CK Changes in CK - Answer- Rise: 3-6 hou...

minimum urine output for adult 0.5mL/kg/hr ADH (antidiuretic hormone) - water retainer - vasoconstrictor (also called Vasopressin) - produced by hypothalamus - store and released from posterior pituitary ADH pathway - hypothalamus senses low blood volumed and increased serum osmolality - signal pituitary to release ADH - ADH causes kidney to retain water - water retention increases blood volume and decreases serum osmolality ANP (atrial natriuretic peptide) -...

ST elevation is associated with - ANSWER-myocardial injury ST depressions is associated with - ANSWER-Ischemia, old infarction, digitalis toxicity Q wave with ST elevation - ANSWER-Acute injury Q wave with ST depression - ANSWER-Indeterminate Q wave without ST changes - ANSWER-Old infarction Coronary Artery Occlusion: Anterior - ANSWER-LAD Coronary Artery Occlusion: Inferior - ANSWER-RCA Coronary Artery Occlusion: Posterior - ANSWER-LCX or RCA Coronary Artery Occlusion: L...

What is the formula for calculating cardiac output? CORRECT ANSWERS: CO= HR x SV What is stroke volume related to? CORRECT ANSWERS: preload Preload is most impacted by..... CORRECT ANSWERS: Increased filling volumes A patient with chronic untreated hypertension would demonstrate.... CORRECT ANSWERS: Increased afterload Vascular resistance/pressure is most influenced by.... CORRECT ANSWERS: Radius of the vessel The formula for BP is.... CORRECT ANSWERS: BP = CO x SVR What ...

Healthstream Test 2023 Exam / 108 Complete Questions and Correct Answers. A patient assessment reveals distended neck veins, pulsus paradoxus, and decreased systolic pressure. This assessment is most consistent with: - ANSWER cardiac tamponade. The nurse is caring for a patient with severe sepsis and third-degree heart block. The patient is hypotensive. The treatment for this life-threatening rhythm change includes: - ANSWER transcutaneous pacing. A patient is admitted to the ICU with sus...

NUR 652 Final Exam Study Questions with Answers All Correct 2023. Why are nitrate-free periods every 24 hours necessary for the patient on nitroglycerin therapy? To inhibit the development of tolerance What does a low level of thyroid-stimulating hormone indicate? Hyperthroidism What would be the best option to treat a newly diagnosed patient with a low TSH level with? Propanolol (Inderal) Spironoaldactone (Aldactone) has what mechanism of action (MOA)? Aldosterone antagonist Heparin exer...

What are the functions of the Cardiovascular System? correct answers - Oxygen delivery & removal of CO2 - Provides cells with Nutrients - Remove waste product from cell metabolism - Protects body against disease & infection right side of heart correct answers deoxygenated blood pumps blood to the lungs left side of heart correct answers oxygenated blood pumps blood to body What is Preload? correct answers Volume of blood in ventricles at end of diastole Preload is increas...