Bundle branch blocks - Study guides, Class notes & Summaries

Straighterline A&P II Quiz 2 with complete solutions What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria -Correct Answer-d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle....

Straighterline A&P II Quiz 2 Latest Version Graded A+ What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle. d....

A patient develops atrial fibrillation after abdominal surgery. Her blood pressure falls from 110/70 mm Hg to 92/68 mm Hg. The hypotension is related to which of the following? a. Decrease in ventricular contractility b. Hypovolemia c. Mural thrombi d. Decrease in ventricular filling - Correct answer: d Rationale: The contribution that atrial contraction makes to ventricular filling volume is approximately 15% to 30%. Atrial fibrillation results in quivering but not contracting atria. The...

Straighterline A&P II Quiz 2 Questions with 100% Correct Answers | Verified | Latest Update 2024 What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria - d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left...

Upright (atria dp top-bottom) or inverted (atria dp bottom-top) in lead II? PR interval analysis Constant or vary? <= 0.20 seconds (1 large box) P to QRS relationship P wave before, during or after QRS? One P wave for each one QRS? Regular relationship? Monitoring ECG 4 lead, looking only at rate and rhythm Diagnostic ECG Use all 10 leads comma looking for MI, hypertrophy, axis deviation, PVC etiology, chamber enlargement, ect... Monitoring lead can tell you: How often the...

Straighterline A&P II Quiz 2 with Complete Solutions What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria -Answer-d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle. d. le...

Metoprolol - Drug that Decreases heart contractility- use cautiously in lung problems (cautious use in diabetics too) QRS Width - Less than 0.12 Digoxin Level - 0.5-2 ng/mL Total Cholesterol - <200 mg/dL Triglyceride Levels - <150 mg/dL LDL Levels - <100 mg/dL HDL Levels - >50 mg/dL Normal Blood Pressure - less than 120/80 Prehypertension BP - 120-139/80-89 Hypertension levels - above 140/90 Ejection Fraction Percentage - 55-65% Potassium Levels - 3.5-5.3 mEq/L Sodium Le...

Automaticity correct answer: Ability to initiate an impulse at a regular interval; "pacemaker" Excitability correct answer: Ability of the heart to respond to a stimulus Conductivity correct answer: Ability of the heart to transmit an electrical impulse from one cell membrane to another Contractility correct answer: The ability of the heart muscle cells to shorten in response to an electrical stimulus Refractoriness correct answer: "Resistant to"; cannot respond to a stimulu...

Straighterline A&P II Quiz 2 Questions with Verified Solutions What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria - Answer -d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventr...

Straighterline A&P II Quiz 2 with Complete Solutions What event(s) occur during the QRS complex of an ECG? a. depolarization of the atria b. repolarization of the ventricles c. depolarization of the atria and repolarization of the ventricles d. depolarization of the ventricles and repolarization of the atria -Answer-d. depolarization of the ventricles and repolarization of the atria Blood in the pulmonary veins returns to the a. right atrium. b. left atrium. c. right ventricle. d. le...