Q wave indicates what - Study guides, Class notes & Summaries

PCCN EXAM Questions With 100% Verified Answers Latest Update 2024/2025 (GRADED) Coronary artery perfusion is dependent upon: A. diastolic pressure B. systolic pressure C. afterload D. systemic vascular resistance (SVR) A. diastolic pressure Diastolic pressure in the aortic root is higher than left ventricular end-diastolic pressure (LVEDP), the pressure exerted on the ventricular muscle at the end of diastole when the ventricle is full. This enables blood to flow from a higher pressure ...

Normal PRI interval - correct answer0.12-0.20 Normal QRS interval - correct answer0.11 or less What does the P wave represent? - correct answerAtrial depolarization What does the QRS complex represent? - correct answerAtrial repolarization and ventricular depolarization Q wave indicates what? - correct answerDead myocardial tissue. Always a negative deflection What is the natural pacemaker of the heart? - correct answerSA node 3 types of pacemakers - correct answer1) single (ei...

CEN Exam 150 Questions with Correct Answers 100% Verifed Which of the following statements made by a patient would lead the nurse to conclude that the patient understands risk factors for pulmonary embolism? While on a long flight, I should get up and walk to stretch my legs every hour. Resuming my birth control pills will lower my risk of cancer and my risk of another clot. If I drink plenty of water while driving on a long trip, this shouldn't happen again. Switching from my regular...

PCCN EXAM Questions With 100% Verified Answers Latest Update 2024/2025 (GRADED) A post-STEMI (ST elevation myocardial infarction) patient is started on an angiotensin-converting enzyme (ACE) inhibitor during his hospital stay. Which of the following is the most common serious side effect that may occur? A. a nonproductive cough B. pedal edema C. swelling of the tongue and face D. rhinorrhea C. swelling of the tongue and face Although all of the answers may occur, swelling og the tongue a...

Chapter 35: Dysrhythmias | Questions, Answers and Rationales A patient admitted with syncope has continuous ECG monitoring. An examination of the rhythm strip reveals the following: atrial rate 74 beats/min and regular; ventricular rate 62 beats/min and irregular; P wave normal shape; PR interval lengthens progressively until a P wave is not conducted; QRS normal shape. The priority nursing intervention would be to a. give epinephrine 1 mg IV push. b. prepare for synchronized cardioversion. c...

CEN Exam Questions And Answers 2024 A+ Review Test Which of the following statements made by a patient would lead the nurse to conclude that the patient understands risk factors for pulmonary embolism? While on a long flight, I should get up and walk to stretch my legs every hour. Resuming my birth control pills will lower my risk of cancer and my risk of another clot. If I drink plenty of water while driving on a long trip, this shouldn't happen again. Switching from my regular cigarett...

Complex Care Final Review 2024 Questions and Answers 100% Pass The nurse recognizes that primary manifesstations of systolic failure include a. decreased EF and increased PAWP b. decreased PAWP and increased EF c. decreased pulmonary hypertension associated with normal EF d. decreased afterload and decreased left ventricular end-diastolic pressure - Correct Answer ️️ -a A compensatory mechanism involved in HF that leads to inappropriate fluid retention and additional workload of the...

A ______________ wave on EKG paper indicates atrial contraction correct answer: p A _____________ complex on EKG paper indicates ventricular construction. correct answer: QRS A ________ wave on EKG paper indicates ventricular relaxation. correct answer: t The PR interval extends from where to where? correct answer: Beginning of the p wave to beginning of the QRS complex The QRS complex measures from where to where? correct answer: Beginning of the Q wave to end of the S wave ...

2024 Air Methods Critical Care Exam - Complete Solutions (Answered) Which of the following is a cause of diastolic dysfunction? A. Cardiac tamponade B. Myocardial infarction C. Hypertension D. Aortic stenosis Diastolic dysfunction is an inability of the heart to fill adequately. Tamponade compresses the chambers so that filling is impaired. If filling is impaired, cardiac output is diminished. Which single lead is the most valuable for the diagnosis of ventricular tachycardia? A.II B.V1 C.V6 D...

Components of ECG P Wave *first wave in ECG complex *represents atrial depolarization *normally has an upward deflection Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen PR segment *electrical inactivity between the p wave and the QRS complex *represents the delay of conduction between the AV node and the Bundle of HIS -this delay allows the atria to contract separately from ventricles -may not be able...