PCCN EXAMINATION NOTES WITH GUARANTEED ACCURATE ANSWERS
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Course
PCCN
Institution
PCCN
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 - Accurate AnswerC
The nurse notes the following when analyzing a patient's telem...
PCCN EXAM NOTES
PCCN EXAMINATION NOTES WITH GUARANTEED ACCURATE ANSWERS 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 - Accurate 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 the PR interval is wide B. Sinus arrhythmia because the QRS complex is narrow C. Torsades de pointes because the QTc is wide D. Third-degree heart block because the PR interval is narrow - Accurate Answer ✅✅C.
QT measurements reflect the duration of ventricular repolarization. Lengthening of QT interval is associated with arrhythmias, adverse cardiac events, and increased mortality because a longer QT duration places the vulnerable ventricular repolarization phase close to the next depolarization, increasing the likelihood of R-on-T. The most common arrhythmia that occurs with prolonged QTc is torsades de pointes. Atrial fibrillation, sinus bradycardia, and third-degree heart block are not typically associated with prolonged ventricular repolarization (QTc >0.50 seconds).
A patient with chronic obstructive pulmonary disease (COPD) is admitted for worsening dyspnea and possible pneumonia. The current ABG results are pH, 7.19; PaO2, 52 mm Hg; PaCO2, 68 mm Hg; HCO3 - , 32 mmol/L. The nurse would interpret these results as
A. Metabolic acidosis with hypoxemia B. Respiratory acidosis with hypoxemia C. Respiratory alkalosis with typical oxygenation for a COPD patient
D. Metabolic alkalosis with typical oxygenation for a COPD patient - Accurate Answer ✅✅B.
Based on the ABG analysis, the patient is experiencing a respiratory acidosis with hypoxemia most likely due to the pneumonia. A pH of 7.19 indicates acidosis; a PaCO2 of 68 mm Hg is elevated and a cause of
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