Ecg changes - Study guides, Class notes & Summaries

Excitability correct answers the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization correct answers occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity correct answers the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex:...

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) -...

2023/2024 HESI MEDICAL-SURGICAL RN NURSING V2 NGN A+ GRADE Question 1 When caring for an elderly patient who is intermittently confused, what is the nurse‘s primary concern regarding fluid and electrolytes? 1.Risk of dehydration 2.Risk of kidney damage 3.Risk of stroke 4.Risk of bleeding Correct Answer: 1 Rationale 1: As an adult ages, the perception of thirst declines. In an older patient with an altered level of consciousness, there is an increased risk of dehydration and high ...

Healthstream Exam Questions and Answers | Latest Update 2023/2024 (Graded A+). The nurse assesses a patient's chest tube drainage 2 hours following thoracic surgery. The total drainage in the system is 200 mL. The nurse knows that: this is an excessive amount of drainage The patient being admitted requires CRRT therapy. The nurse assigned to admit the patient has not been educated on this therapy. The charge nurse adjusts the assignment so that a nurse with 3 years experience in CRRT ther...

Which 12-lead ECG changes should be expected in a patient with ACS involving the inferior wall? a) ST segment elevation in leads II, III and all the precordial leads b) ST segment elevation and deeply inverted T waves in leads II, III and AvF c) ST segment elevation and deeply inverted T waves in leads V4-V6, I and aVL d) ST segment depression and T wave elevation in leads II, III and AvL - Answer- Correct Answer: ST segment elevation and deeply inverted T waves in leads II, III and AvF A...

2024/2025 HESI HEALTH ASSESSMENT NURSING RN V1 100 Questions with answers1. During a mental status examination, the nurse wants to assess a patient’s affect. The nurse should ask the patient which question? 2. The nurse is planning to assess new memory with a patient. The best way for the nurse to do this would be to: 3. A 45-year-old woman is at the clinic for a mental status assessment. In giving her the Four Unrelated Words Test, the nurse would be concerned if she could not ____ four unrel...

ATI Adv. Med-surg FINAL EXAM 1. A nurse in a burn treatment center is caring for a client who is admitted with severe burns to both lower extremities and is pending an escharotomy. The client’s spouse asks the nurse what the procedure entails. Which of the following nursing statements is appropriate? a. “large incisions will be made in the eschar to improve circulation” b. “ I can call the doctor back here if you want me to” c. “a piece of skin will be removed and grafted ov...

Excitability - Answer- the ability of non-pacemaker heart cells to respond to an electrical impulse that begins in pacemaker cells. Depolarization - Answer- occurs when the normally negatively charged cells within the heart muscle develop a positive charge. Conductivity - Answer- the ability to send an electrical stimulus from cell membrane to cell membrane. As a result, excitable cells depolarize in rapid succession from cell to cell until all cells have depolarized. Ex: the wave of depol...

RELIAS ED RN A ACTUAL EXAM 150 QUESTIONS ANDS CORRECT ANSWERS UPDATE ALREADY GRADED A+ |BRAND NEW!! During cardiogenic shock what temporary intervention might be ordered to improve perfusion until definitive treatment is provided? Coronary artery bypass notropic iffusion Percutaneous intervention Continuous renal replacement therapy - ANSWER- Inotropic infusion You accidentally administered epinephrine 1:1000 intravenous push for a patient suffering from a severe anaphylactic reac...

Absolute Contraindications to Exercise Testing - ANSWER • A recent significant change in the resting ECG suggesting significant ischemia, recent MI (within 2 d), or other acute cardiac event • Unstable angina • Uncontrolled cardiac dysrhythmias causing symptoms or hemodynamic compromise • Symptomatic severe aortic stenosis • Uncontrolled symptomatic heart failure • Acute pulmonary embolus or pulmonary infarction • Acute myocarditis or pericarditis • Suspected or known di...