Duration of qt interval Study guides, Class notes & Summaries

PVARP....after a _____ event, refractory for the ______ - ventricle, atrium what is most likely the cause of the under detection of atrial flutter? - p waves falling into PVAB Which two studies showed that RV pacing in patients could lead to more hospitalizations? - DAVID and MOST when are the wedensky effects the greatest - at narrow pulse widths First degree AV block with symptoms of ppm syndrome is what class of indication for pacing - Class IIa Calculation of the wenkbach inte...

PCCN Practice Exam Notes (2024) with Complete Solutions PCCN Practice Exam Notes (2024) with Complete Solutions PCCN Practice Exam Notes (2024) with Complete Solutions Pt on Vtach, HR 135, RR 32, BP 90/48, conscious but c/o dizziness, recent K+ lvl is 3.4. What action would you do first? a. emergent defib b. amio 300mg IVP c. emergent cardioversion d. hang 10 mEq KCL/50mL D5W - ANSWER-C The nurse notes the following when analyzing a patient's telemetry strip: HR, 65/min and ...

Pt on Vtach, HR 135, RR 32, BP 90/48, conscious but c/o dizziness, recent K+ lvl is 3.4. What action would you do first? a. emergent defib b. amio 300mg IVP c. emergent cardioversion d. hang 10 mEq KCL/50mL D5W - C The nurse notes the following when analyzing a patient's telemetry strip: HR, 65/min and regular; PR interval, 0.22 seconds; QRS complex, 0.10 seconds; QTc, 0.52 seconds. Which of the following dysrhythmias is the patient at risk for? A. Atrial fibrillation because the PR in...

PCCN practice exam notes (2024/2025) Already Passed Pt on Vtach, HR 135, RR 32, BP 90/48, conscious but c/o dizziness, recent K+ lvl is 3.4. What action would you do first? a. emergent defib b. amio 300mg IVP c. emergent cardioversion d. hang 10 mEq KCL/50mL D5W C The nurse notes the following when analyzing a patient's telemetry strip: HR, 65/min and regular; PR interval, 0.22 seconds; QRS complex, 0.10 seconds; QTc, 0.52 seconds. Which of the following dysrhythmias is the pati...

Pt on Vtach, HR 135, RR 32, BP 90/48, conscious but c/o dizziness, recent K+ lvl is 3.4. What action would you do first? a. emergent defib b. amio 300mg IVP c. emergent cardioversion d. hang 10 mEq KCL/50mL D5W - ANSWER C The nurse notes the following when analyzing a patient's telemetry strip: HR, 65/min and regular; PR interval, 0.22 seconds; QRS complex, 0.10 seconds; QTc, 0.52 seconds. Which of the following dysrhythmias is the patient at risk for? A. Atrial fibrillation because t...

Pt on Vtach, HR 135, RR 32, BP 90/48, conscious but c/o dizziness, recent K+ lvl is 3.4. What action would you do first? a. emergent defib b. amio 300mg IVP c. emergent cardioversion d. hang 10 mEq KCL/50mL D5W - C The nurse notes the following when analyzing a patient's telemetry strip: HR, 65/min and regular; PR interval, 0.22 seconds; QRS complex, 0.10 seconds; QTc, 0.52 seconds. Which of the following dysrhythmias is the patient at risk for? A. Atrial fibrillation because the PR in...

Nitroprusside purpose - Answer- decreases preload and afterload by vasodilation (mainly afterload) Dobutamine mechanism of action - Answer- contractility Dopamine at a low-end dose "renal dose" - Answer- 0.5-4mcg/kg/min increases renal and mesentric perfusion Dopamine at a mid-range dose - Answer- 4-10mcg/kg/min increases contractility and heart rate Dopamine at a high-range dose - Answer- greater than 10mcg/kg/min vasoconstriction and increases BP Dopamine and Levophed inf...

APEX EKG Test - Questions and Answers (Complete Solutions) Phase 0 of the cardiac action potential correlates to what event, EKG piece, and ion movement? Depolarization QRS Na+ influx Phase 1 of the cardiac action potential correlates to what event, EKG piece, and ion movement? Initial repolarization QRS Cl- influx K+ efflux Phase 2 of the cardiac action potential correlates to what event, EKG piece, and ion movement? Plateau ST segment Ca+2 influx K+ efflux Phase 3 of the cardiac action poten...

NURS 3000 FINAL EXAM QUESTIONS AND ANSWERS UPDATED (VERIFIED) What are the normal serum sodium levels? - ANSWER 135-145 mmol/L What are the normal serum potassium levels? - ANSWER 3.5-5 mmol/L what is normal glucose levels? - ANSWER 4-7 What is the normal pH of blood? - ANSWER 7.35-7.45 what is the normal PaCO2 value? - ANSWER 35-45 PaO2 normal range - ANSWER 75-100 mmHg What is the normal HCO3 value? - ANSWER 22-26 what is the normal level of hematocrit? - ANSWER Men- 41%-50% Women- 36...

Which of the EKG findings is most likely indicative of Acute Myocardial Infarction (AMI) in a patient presenting with acute chest pain? A. Wide and bizarre QRS complexes in the EKG B. ST segment changes (STEMI or NSTEMI) in the EKG C. A saw-toothed pattern in the EKG saw-toothed pattern in the EKG D. Flat line in the EKG - Answer- B. ST segment changes (STEMI or NSTEMI) in the EKG To determine whether there is a delay in impulse conduction through the atria, the nurse will measure the len...