📑 2026 CARDIAC MASTERY: EKG, Meds & 30
NGN Practice Questions
Shop: Premium Nursing Resources
Document Grade: A+ / NCLEX-RN High-Yield Standard
Format: Comprehensive Study Guide + Exam with Elaborations
🛑 INSTRUCTIONS FOR SUCCESS
To get the most out of this master bundle, please follow these steps:
1. Review the Cheat Sheets: Focus on the "Nursing Priorities" and "Red Flags" for EKG and Cardiac
Pharmacology.
2. Take the 30-Question Exam: Complete the questions in one sitting to build your testing stamina
for the NCLEX.
3. Study the Rationales: Crucial Step. Even for the questions you got right, read the "Why others are
incorrect" section. This trains your brain to eliminate "distractors" on the real exam.
⚡ SECTION 1: CARDIAC & EKG CHEAT SHEETS
The "Deadly 6" EKG Rhythms
Rhythm Pathophysiology The Nursing Priority (#1 Action)
V-Fib Chaotic quivering; No pulse. Defibrillate immediately. "D-Fib for V-Fib."
Pulseless V-
Rapid, wide QRS; No pulse. Defibrillate. (Treat same as V-Fib).
Tach
Asystole Flat line; No activity. High-quality CPR + Epinephrine. (Do NOT shock).
Vagal Maneuvers first, then Adenosine (Rapid
SVT HR > 150; Narrow QRS.
push).
Irregularly irregular; No P-
A-Fib Anticoagulation (Warfarin) to prevent Stroke.
waves.
Sinus Brady HR < 60 bpm. If symptomatic, administer Atropine.
, Cardiac Medication "Gold Standards"
ACE Inhibitors (-pril): Watch for the "ACE Cough" and life-threatening Angioedema.
Beta Blockers (-olol): Always check HR and BP. Contraindicated for Asthma/COPD
(Bronchospasm).
Digoxin: Narrow therapeutic index. Hold for HR < 60. Toxic signs: Yellow/Green halos.
Nitroglycerin: Vasodilator. Call 911 if pain persists after the first dose.
📝 SECTION 2: 30-QUESTION HIGH-YIELD PRACTICE
EXAM
1. A patient’s cardiac monitor shows Ventricular Fibrillation (V-Fib). The patient is unresponsive and
pulseless. Which action should the nurse take first?
A. Administer 1mg of Epinephrine IV push.
B. Perform synchronized cardioversion.
C. Initiate high-quality CPR.
D. Defibrillate the patient at the recommended joules.
2. A patient with Heart Failure is prescribed Furosemide (Lasix). Which lab value should the nurse
report to the provider immediately?
A. Sodium: 136 mEq/L
B. Potassium: 3.1 mEq/L
C. Creatinine: 1.0 mg/dL
D. Hemoglobin: 12.5 g/dL
3. The nurse is preparing to administer Digoxin to a patient with Atrial Fibrillation. Which assessment
finding requires the nurse to hold the medication?
A. Respiratory rate of 20 breaths per minute.
B. Blood pressure of 140/90 mmHg.
C. Apical pulse of 52 beats per minute.
D. Potassium level of 4.8 mEq/L.
4. A patient is experiencing Supraventricular Tachycardia (SVT). The physician orders Adenosine.
How should the nurse administer this medication?
A. Slow IV drip over 30 minutes.
B. Rapid IV push over 1–2 seconds followed by a saline flush.
C. Intramuscularly in the vastus lateralis.
D. Subcutaneously in the abdomen.
NGN Practice Questions
Shop: Premium Nursing Resources
Document Grade: A+ / NCLEX-RN High-Yield Standard
Format: Comprehensive Study Guide + Exam with Elaborations
🛑 INSTRUCTIONS FOR SUCCESS
To get the most out of this master bundle, please follow these steps:
1. Review the Cheat Sheets: Focus on the "Nursing Priorities" and "Red Flags" for EKG and Cardiac
Pharmacology.
2. Take the 30-Question Exam: Complete the questions in one sitting to build your testing stamina
for the NCLEX.
3. Study the Rationales: Crucial Step. Even for the questions you got right, read the "Why others are
incorrect" section. This trains your brain to eliminate "distractors" on the real exam.
⚡ SECTION 1: CARDIAC & EKG CHEAT SHEETS
The "Deadly 6" EKG Rhythms
Rhythm Pathophysiology The Nursing Priority (#1 Action)
V-Fib Chaotic quivering; No pulse. Defibrillate immediately. "D-Fib for V-Fib."
Pulseless V-
Rapid, wide QRS; No pulse. Defibrillate. (Treat same as V-Fib).
Tach
Asystole Flat line; No activity. High-quality CPR + Epinephrine. (Do NOT shock).
Vagal Maneuvers first, then Adenosine (Rapid
SVT HR > 150; Narrow QRS.
push).
Irregularly irregular; No P-
A-Fib Anticoagulation (Warfarin) to prevent Stroke.
waves.
Sinus Brady HR < 60 bpm. If symptomatic, administer Atropine.
, Cardiac Medication "Gold Standards"
ACE Inhibitors (-pril): Watch for the "ACE Cough" and life-threatening Angioedema.
Beta Blockers (-olol): Always check HR and BP. Contraindicated for Asthma/COPD
(Bronchospasm).
Digoxin: Narrow therapeutic index. Hold for HR < 60. Toxic signs: Yellow/Green halos.
Nitroglycerin: Vasodilator. Call 911 if pain persists after the first dose.
📝 SECTION 2: 30-QUESTION HIGH-YIELD PRACTICE
EXAM
1. A patient’s cardiac monitor shows Ventricular Fibrillation (V-Fib). The patient is unresponsive and
pulseless. Which action should the nurse take first?
A. Administer 1mg of Epinephrine IV push.
B. Perform synchronized cardioversion.
C. Initiate high-quality CPR.
D. Defibrillate the patient at the recommended joules.
2. A patient with Heart Failure is prescribed Furosemide (Lasix). Which lab value should the nurse
report to the provider immediately?
A. Sodium: 136 mEq/L
B. Potassium: 3.1 mEq/L
C. Creatinine: 1.0 mg/dL
D. Hemoglobin: 12.5 g/dL
3. The nurse is preparing to administer Digoxin to a patient with Atrial Fibrillation. Which assessment
finding requires the nurse to hold the medication?
A. Respiratory rate of 20 breaths per minute.
B. Blood pressure of 140/90 mmHg.
C. Apical pulse of 52 beats per minute.
D. Potassium level of 4.8 mEq/L.
4. A patient is experiencing Supraventricular Tachycardia (SVT). The physician orders Adenosine.
How should the nurse administer this medication?
A. Slow IV drip over 30 minutes.
B. Rapid IV push over 1–2 seconds followed by a saline flush.
C. Intramuscularly in the vastus lateralis.
D. Subcutaneously in the abdomen.
