And of atria and vent - Study guides, Class notes & Summaries

A branch of the _______________ supplies the right atrium and right ventricle with blood. correct answer: right coronary artery (RCA) Stimulation of parasympathetic nerve fibers typically results in which of the following actions? correct answer: Slowed conduction through the atrioventricular (AV) node The contribution of blood that is added to the ventricles and results from atrial contraction is called correct answer: atrial kick. Which of the following are semilunar valves? correc...

What does the SA node initiate - - P wave (if none, SA not responsible for electrical conduction) (atrial depolarization) What does the QRS complex represent? - ventricular depolarization (vent contraction) (none=no pulse) (don't see atrial repolarization but it occurs, as it is not the strongest thing to occur) What does the U wave indicate? - indicates hypocalemia, not conductio issue it would be seen with electrolyes (digoxin) Is it normal to not see part of the Q, R, or S complex -...

Telemetry Class & strips Exam 44 Questions with Verified Answers 60-100 - CORRECT ANSWER Intrinsic rate of SA node 40-60 - CORRECT ANSWER intrinsic rate of AV node 20-40 - CORRECT ANSWER intrinsic rate of Purkinje fibers 0.04-0.12 seconds - CORRECT ANSWER normal QRS interval length 0.12-0.20 seconds - CORRECT ANSWER normal PR interval length inverted T wave and/or ST depression - CORRECT ANSWER signs of ischemia ST elevation - CORRECT ANSWER signs of heart tissue injury ...

contractility - strength of contraction -how effective is heart at squeezing blood out improving contractility - BP is low-> give catelcholamines depressing contractility - BP is high-> beta blockers preload - degree of stretch at END of diastole (relax so filling) -higher stroke volume= more blood returning to heart afterload - resistance of ejecting blood out from ventricle s -more resistance- less stroke volume -vessels dilated- less resistance- easier to leave heart increasing...

NUR 265 Exam 2 Study Guide Lungs Physiology ● 2 Pleural, 1 attached to outside of lungs and 1 attached to inside of ribs. ● Space between the 2 pleural is negative to atmosphere ● When inhale becomes more positive and atmosphere more negative. Exhaling is passive ● Most of lower lobes are posterior, must listen to lungs posteriorly ● Breath sounds o Bronchial: High pitched & loud, normal in tracheal & larynx o Bronchovesicular: Moderate pitched & amplitude, normal ove...

NUR 265 Exam 2 Study Guide Lungs Physiology ● 2 Pleural, 1 attached to outside of lungs and 1 attached to inside of ribs. ● Space between the 2 pleural is negative to atmosphere ● When inhale becomes more positive and atmosphere more negative. Exhaling is passive ● Most of lower lobes are posterior, must listen to lungs posteriorly ● Breath sounds o Bronchial: High pitched & loud, normal in tracheal & larynx o Bronchovesicular: Moderate pitched & amplitude, normal ove...

Relias Dysrhythmia Basic Test Answers normal sinus rhythm heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia Appearance is ALMOST NORMAL: Respiratory – Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia <60 normal sinus rhythm Sinus Tachycardia >100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) Heart Rate: Depends on underlying rhythm Regularity: Interrupts the re...

Relias Dysrhythmia Basic Test Answers normal sinus rhythm heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Sinus Arrhythmia Appearance is ALMOST NORMAL: Respiratory – Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia <60 normal sinus rhythm Sinus Tachycardia >100 (100-150) normal sinus rhythm Premature Atrial Contraction (PAC) Heart Rate: Depends on underlying rhythm Regularity: Interrupts the re...

1 PCCN REVIEW: CARDIOVASCULAR EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Blood Oxygenation Cycle Correct Answer: 1. venous blood 2. right atrium spid valve 4. right ventricle 5. pulmonic valve 6. lungs (blood becomes oxygenated) 7. left atrium 8. mitral valve 9. left ventricle 10. aorta 11. systemic circulation Cardiac Output Correct Answer: HEART RATE x STROKE VOLUME 2 - amount of blood leaving heart in 1 minute Stroke Volume Correct Answer: amount...

Telemetry Exam 54 Questions with Verified Answers Isoelectric - CORRECT ANSWER What is the depolarized status of the ventricles called? 5 mm - CORRECT ANSWER What is the measurement between two dark lines on a ECG strip? 1 second of time - CORRECT ANSWER How much time is 5 LARGE boxes on an ECG strip? 0.20 seconds - CORRECT ANSWER How much time is 1 LARGE box on an ECG strip? 0.04 seconds (= 1 mm) - CORRECT ANSWER How much time is 1 small box on an ECG strip? P waves - CORRECT ...