What is afterload - Study guides, Class notes & Summaries

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...

The nurse is caring for a patient admitted with hypovolemic shock. The nurse palpates thready brachial pulses but is unable to auscultate a blood pressure. What is the best nursing action? a. Assess the blood pressure by Doppler. b. Estimate the systolic pressure as 60 mm Hg. c. Obtain an electronic blood pressure monitor. d. Record the blood pressure as not assessable. A ~ Auscultated blood pressures in shock may be significantly inaccurate due to vasoconstriction. If blood pressure is not...

what are 3 'systems' of blood circulation that we discussed in class? (Ans- pulmonary system systemic system coronary system during ventricular systole, what is happening to the blood volume within the ventricle? (Ans- first, there is no change-once pressure is great enough and the semilunar valves one, volume drops what 3 veins empty into the right atrium (Ans- superior vena cava, inferior vena cava, coronary sinus an individual has an increase in afterload, what effect wo...

What is the most important sign in a critically ill pt? Why? - ANSWER-Tachypnea Indicates metabolic acidosis w/ respiratory alkalosis compensation A pt misses dialysis for a few days and comes in with fluid overload. He's tachycardic and tachypneic. On physical exam, you find JVD, pulsus paradoxus (20 mmHg drop during inspiration), and HoTN (80/40) with distant, muffled heart sounds. Lungs are clear to auscultation. What is the dx? - ANSWER-Cardiac tamponade; obstructive shock If a pt ...

Amls Final Test Exam (Questions And Answers) A 45-year-old patient is found supine on the floor. Healthcare providers note pinpoint pupils, shallow respirations, and vomitus in and around the mouth. What course of action should be taken next? - CORRECT ANSWER-Supplemental oxygen and suction Patients with a history of COPD that present with an acute onset of shortness of breath are likely to have which condition? - CORRECT ANSWER-Pulmonary embolism During compensatory shock, the renin-...

MN 551 Midterm Exam 2023/2024 Saved A patient is experiencing impaired circulation secondary to increased systemic arterial pressure. Which of the following statements is the most relevant phenomenon? Question 1 options: Increased preload due to vascular resistance High afterload because of backpressure against the left ventricle Impaired contractility due to aortic resistance Systolic impairment because of arterial stenosis Question 2 (2 points) Saved A nurse practitioner employe...

How does chronic aortic stenosis lead to left ventricular hypertrophy? Chronic aortic stenosis leads to left ventricular hypertrophy bc of increased workload of pumping blood through a narrow opening. The left atrium can also enlarge but mainly causes left ventricular hypertrophy. The right ventricle will remain normal for a period of time. That's why LHF happens first then leads to RHF. Chronic mitral stenosis will cause enlargement in which area? Left atria hypertrophy. In pt with Mitral v...

NUR 2474 Pharmacology Final Exam The nurse working on a high-acuity medical-surgical unit is prioritizing care for four patients who were just admitted. Which patient should the nurse assess first? a.The NPO patient with a blood glucose level of 80 mg/dL who just received 20 units of 70/30 Novolin insulin b.The patient with a pulse of 58 beats per minute who is about to receive digoxin (Lanoxin) c.The patient with a blood pressure of 136/92 mm Hg who complains of having a headache d.The p...

BKAT ICU Post Test Questions and Answers 2023, Graded A+ Nitroprusside purpose decreases preload and afterload by vasodilation (mainly afterload) Dobutamine mechanism of action contractility Dopamine at a low-end dose "renal dose" 0.5-4mcg/kg/min increases renal and mesentric perfusion Dopamine at a mid-range dose 4-10mcg/kg/min increases contractility and heart rate Dopamine at a high-range dose greater than 10mcg/kg/min vasoconstriction and increases BP ...