Sinoatrial node Study guides, Revision notes & Summaries

A patient care technician is assisting a nurse to change a dressing on a surgical wound. The wound should not have contact with air or oxygen. Which of the following types of dressing should the technician expect the nurse to use? - Occlusive A patient care technician is caring for a patient who has significant hearing loss. Which of the following actions should the technician take to communicate with the patient? - Use a picture board to provide instructions A patient care technician is t...

Relias Assessments Assistance Material DYSRHYTHMIAS EKG interpretation One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart's electrical activity as waveforms. An EKG uses electrodes attached to the skin to detect electric current moving through the heart. These signals are transmitted to produce a record of cardiac activity. Arrhythmia or dysrhythmia are disturbances in the normal cardiac rhythm of the heart which occurs as a result ...

UCLA Phlebotomy Exam 4 | Questions and Verified Answers| 100% Correct| A Grade (2024/ 2025) Left AV valve function closes when the left ventricle contracts and prevents blood from flowing back into left atrium QUESTION Pulmonary semilunar valve Answer: between right ventricle and pulmonary artery -at the entrance of pulmonary artery QUESTION right semilunar valve function Answer: closes when the right ventricle relaxes and prevents blood from flowing back t...

Test Bank Medical Surgical Nursing 9th Edition Ignatavicius Workman MULTIPLE CHOICE 1. A nurse assesses a client who had a myocardial infarction and is hypotensive. Which additional assessment finding should the nurse expect? a. Heart rate of 120 beats/min b. Cool, clammy skin c. Oxygen saturation of 90% d. Respiratory rate of 8 breaths/min ANS: A When a client experiences hypotension, baroreceptors in the aortic arch sense a pressure decrease in the vessels. The parasympathetic system...

Clinical Reasoning Cases in Nursing 7th Edition Harding Snyder Test Bank Clinical Reasoning Cases in Nursing 7th Edition Harding Snyder Test Bank Clinical Reasoning Cases in Nursing 7th Edition Harding Snyder Test Bank Question and Answers, With Rationales A+ Rated Guide Download Instantly for an A score Clinical Reasoning Cases in Nursing 7th Edition Harding Snyder Test Bank Chapter 1.Perfusion MULTIPLE CHOICE 1. The nurse is explaining to a student nurse about impaired central perfusion. The n...

Clinical Reasoning Cases in Nursing 7th Edition Harding Snyder Test Bank. The nurse is explaining to a student nurse about impaired central perfusion. The nurse knows the student understands this problem when the student states, Central perfusion a. is monitored only by the physician. b. involves the entire body. c. is decreased with hypertension. d. is toxic to the cardiac system. ANS: B Central perfusion does involve the entire body as all organs are supplied with oxygen and vital nut...

Central Perfusion Correct Answer-the volume of blood the heart pumps through the circulatory system in one minute (CO). Tissue perfusion Correct Answer-Flow of blood through arteries and capillaries to deliver oxygen and nutrients to cells and tissues and to remove waste products. Ischemia Correct Answer-blood supply is decreased resulting in reversible cellular/tissue injury; reversible. The only artery to carry deoxygenated blood Correct Answer-pulmonary artery. The only vein that ...

ENA Emergency Nursing Orientation 3.0 Questions With Complete Solutions. Which type of shock causes a temporary loss of motor, sensory, and reflex functions below the level of a lesion? Spinal shock According to the rule of nines, burns of the anterior trunk and both anterior arms account for which percentage of body surface area? 27 percent Which effect does parasympathetic stimulation have on the heart? A. It increases peripheral vascular resistance. B. It enhances atrioventricular no...

ATI PN PHARMACOLOGY PROCTORED EXAM A nurse is administering subcutaneous heparin to a client who is at risk for deep vein thrombosis. Which of the following actions should the nurse take? 1. Administer the medication into the client's abdomen. 2. Inject the medication into a muscle. 3. Massage the site after administering the medication. 4. Use a 22-gauge needle to administer the medication. A nurse is providing teaching to a client who has a urinary tract infection and new ...

ENA EMERGENCY NURSING ORIENTATION 3.0 ALL TESTS QUESTIONS & ANSWERS LATEST 2024 NEW!!! Which type of shock causes a temporary loss of motor, sensory, and reflex functions below the level of a lesion? - Answer- Spinal shock According to the rule of nines, burns of the anterior trunk and both anterior arms account for which percentage of body surface area? - Answer- 27 percent Which effect does parasympathetic stimulation have on the heart? A. It increases peripheral vascular resist...