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Which of the following would describe the situation where new Q waves are noted in leads II, III, aVF?
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- Which of the following is most likely to be present on the resting EKG recording of a patient with AV node damage? An R-R interval of 0.52 seconds at rest A P-R interval of 0.28 seconds at rest An inverted T wave Normal sinus rhythmWhich of these accounts for the similarity between the P wave duration and the QRS complex duration despite the ventricle being much larger than the atria? Group of answer choices The His-Purkinje system has a faster conduction velocity than the atrial system The atria contain the same volume of blood as the ventricles Gravity increases the ventricular conduction velocity The rate of phase 4 depolarization is similar in all the conducting cells of the heartIn which of the following situations is calcium moving through a channel in the pacemaker membrane driven by concentration but against charge? O during the repolarization phase of the action potential, just before the channel closes O during the depolarization phase of the action potential, just after the channel opens O never O at all times that sodium is moving through the membrane O during the repolarization phase of the action potential, just after the channel opens O during the depolarization phase of the action potential, just before the channel closes O during the pacemaker potential, just before the funny channel closes
- The short horizontal line between the P wave and the QRS complex indicates that a-depolarization is moving slowly through the AV Node b-the atria are done contracting c-the ventricles are depolarizing d-the ventricles are contracting and ejecting bloodReferencing the ECG trace below, when would you expect the AV node to start depolarizing? options: P R Q S QT Interval T Right before the T wave. Some time during the PR interval. Right before the P wave. Right after the QRS complex. RR Interval P R S QT Interval T1. is the rhythm regular or irregular 2. determine the heart rate 3. do you have p waves before every QRS 4. Measure the PR interval 5. Measure the QRS duration 6. Are there any early or extra beats 7. is there normal r wave progression in V1-V6? 8. Are the ST segments elevated or depressed? 9. Are there any abnormal Q waves? 10.. Are the T waves of normal size? 11. Are there any U waves? 12. Is there evidence of myocardial ischemia, injury, or infarction? 13. Name this EKG.
- Analyze this rhythm strip and identify the rhythm/dysrhythmia. Sinus rhythm with bundle branch block Second-degree AV block type II Second-degree AV block type ! Sinus rhythm with first-degree AV block Third-degree AV block 2:1 second-degree AV block SUBMIT INSTRUCTIONS If needed, select one of the above tools. بلس السل سلسالس السلسلةA patient has tachycardia and has amiodarone infusing at 15 mL/h. The amiodarone concentration is 300 mg in 500 mL. At what rate, in mg/min, is the amiodarone infusing? Round to the tenth if applicable. A patient with a dysrhythmia has procainamide ordered at 2 mg/min. The concentration is procainamide 4g in 100 mL of D5W. How Many mL/h should the IV pump be programmed for? Round to the tenth if applicable. The patient is ordered to receive 16 units/h of regular insulin. Available is 200 units of regular insulin in 250 mL of 0.9% NS. At what rate in mL/h should the infusion pump be set at? Round to the tenth if applicable . Lanoxin Pediatric elixir is available 0.05 mg/mL. The ordered amount by the doctor is 45 mcg per dose two times per day. What is the amount in mL that the nurse will give per dose via oral syringe? Round to the tenth if applicable.Could you please answer this ekg question thank you so much. Regularity- Rate- P waves present Y or N PRI- QRS- Interpretation-
- The force of contraction can be changed by: can choose more than on e Group of answer choices - muscarinic ACh receptors. Activation of the receptors leads to decreased Ca2+ entry and increased K+ entry in ventricles. - Beta2 adrenergic receptors. Increasing cAMP leads to increases in PKA, which increases sarcoplasmic calcium by opening VG Ca+ channels for a longer time, opening SR Ca2+ channels, and increasing the rate of Ca2+ removed by SERCA pumps. - Beta1 adrenergic receptors. Increasing cAMP leads to increases in PKA, which increases sarcoplasmic calcium by opening VG Ca+ channels for a longer time, opening SR Ca2+ channels, and increasing the rate of Ca2+ removed by SERCA pumps. - Not by the parasympathetic NS. (at least, not the ventricles).Below is the homeostatic reflex arc for heart rate and blood pressure. Please note that this homeostatic reflex begins once the activity has stopped to reset resting HR. Please match the following statements (on the left) to the appropriate steps in the pathway (on the right). You will use each match once. Heart rate slows Medulla oblongata 1. Stimulus 2. Receptor SA node (pacemaker) of heart 3. Integrating center Decreased CO2 waste products due to decreased oxygen consumption. 4. Effector 5. Response Baroréceptors that monitor stretch of aorta and how fast the heart is beating. 1In the normal EKG the QRS wave correlates with electricity present in which structure? ventricles atrial chambers Bundle of His Purkinje fibers L/R bundle branches
