PCCN practice exam Comprehensive
Questions (Frequently Tested) and
Complete Solutions Graded A+
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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 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 - 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 -
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
acidosis; an HCO3 - of 32 mmol/L indicates renal compensation; a PaO2
of 52 mm Hg indicates hypoxemia
76-year-old patient is receiving gentamicin and linezolid for an
infection. Which of the following potential complications is the most
important for the nurse to monitor this patient for?
A. Acute delirium
B. Acute kidney injury
C. Acute hepatic failure
D. Sepsis - Answer: B.
Questions (Frequently Tested) and
Complete Solutions Graded A+
Professional Academic Assistance Services
Services Offered
• Proctored Exam Assistance
• Online Class Management (Full Course Support)
• Exam Preparation & Study Materials
• Assignments and Coursework Support
• Essay and Research Paper Writing
• Discussion Posts & Responses
• Editing and Proofreading
• Confidential Academic Consultation
Contact Information
Email:
WhatsApp link: https://wa.me/254704846336
Fast Response | Confidential | Reliable Academic Support
Helping Students Achieve Academic Excellence
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 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 - 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 -
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
acidosis; an HCO3 - of 32 mmol/L indicates renal compensation; a PaO2
of 52 mm Hg indicates hypoxemia
76-year-old patient is receiving gentamicin and linezolid for an
infection. Which of the following potential complications is the most
important for the nurse to monitor this patient for?
A. Acute delirium
B. Acute kidney injury
C. Acute hepatic failure
D. Sepsis - Answer: B.
