Electrocardiografia

Electrocardiografia

Professional Development

5 Qs

quiz-placeholder

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Electrocardiografia

Electrocardiografia

Assessment

Quiz

Special Education

Professional Development

Hard

Created by

US NURSES EVALUACIONES

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The nurse is caring for a client with atrial fibrillation. Which of the following client findings requires immediate follow-up by the nurse?

A. Irregular QRS complexes on telemetry reading


B. Irregular peripheral pulse


C. Reports of intermittent palpitations

D. Blurred vision

Answer explanation

Choice D is correct. Blurred vision is an unexpected manifestation of atrial fibrillation and may signify that the client has had a stroke. Ischemic stroke is a significant complication of atrial fibrillation which explains why most clients with atrial fibrillation will be prescribed anticoagulants to prevent this life-threatening complication.

Choice A is incorrect. Irregular QRS complexes are expected in atrial fibrillation because this is an irregular rhythm.

Choice B is incorrect. Since atrial fibrillation is irregularly irregular, the client is expected to have an irregular peripheral pulse.

Choice C is incorrect. Intermittent palpitations or fluttering is an expected finding with atrial fibrillation.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

An emergency department (ED) nurse establishes continuous cardiac monitoring for a client. The following tracing is observed on the monitor. The nurse should take which initial action? See the image below.


A. Establish vascular access and request a prescription for atropine

B. Assess the client's blood pressure and level of consciousness


C. Obtain and review the client's current medications

D. Document the findings and reassess the client in one hour

Answer explanation

Choice B is correct. The nurse should prioritize assessing the client's vital signs and level of consciousness. This tracing reflects sinus bradycardia. While sinus bradycardia may be benign, if the client should experience unstable blood pressure or dizziness, the nurse will need to act by establishing vascular access and administering atropine. However, this is predicated on the client's overall stability, which can only be discerned by assessment.

Choices A, C, and D are incorrect. These actions are plausible but do not prioritize assessing the client and their overall condition. Reviewing the client's current medications may determine the origin of the bradycardia but will not yield clues as to the client's current level of stability. Documentation should only occur once the nurse has determined that the client is stable.

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

The nurse is caring for a client with the following tracing on the electrocardiogram. When reviewing the client’s medical history, which condition could be causing this dysrhythmia? See the image below.

A. Graves' disease


B. Increased intracranial pressure


C. Severe hypothermia


D. Myxedema coma

Answer explanation

Choice A is correct. This tracing reflects sinus tachycardia (ST). ST can be caused by an array of conditions such as dehydration, hypo- and hyperglycemia, stress, anxiety, and thyroid conditions such as hyperthyroidism. Graves’ disease is the most common cause of hyperthyroidism, and this increased metabolic and sympathetic activity would cause tachycardia.

Choices B, C, and D are incorrect. Increased intracranial pressure would manifest with bradycardia. Hypothermia causes a slowing of metabolic and sympathetic activity; thus, bradycardia is a feature of this condition. Myxedema coma is an endocrine emergency marked by severe hypothyroidism. The hallmark of severe hypothyroidism is life-threatening bradycardia.

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Media Image

The nurse is caring for a client with the following tracing on the electrocardiogram (ECG). The client has an oral temperature of 101 o F (38.3o C). The nurse should be prepared to obtain which prescription from the primary healthcare provider (PHCP)? Select all that apply. See the image below.

0.9% saline bolus

Enalapril

Levothyroxine

Metoclopramide

Acetaminophen

Answer explanation

Choices A and E are correct. This reflects sinus tachycardia (ST). ST can be caused by various conditions, such as a febrile illness likely to induce dehydration. The appropriate action for the nurse is to obtain prescriptions for fluids to rehydrate the client and acetaminophen to mitigate the fever.

 Choices B, C, and D are incorrect. Enalapril is an ACE inhibitor that may decrease the client's blood pressure but would not directly impact the client's heart rate. Levothyroxine would worsen tachycardia because levothyroxine increases thyroid hormone, thereby increasing metabolic and sympathetic processes. Metoclopramide is a medication that causes gastric emptying and is not related to the treatment of ST.

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What EKG rhythm represents a third-degree heart block?

Media Image
Media Image
Media Image
Media Image

Answer explanation

Choice A is correct. This rhythm represents a 3rd-degree heart block because there is no QRS complex after every other p wave. This is because the AV node has no conduction during a 3rd-degree heart block. Therefore, the p waves and QRS complexes are not interacting with each other.

Choice B is incorrect. This rhythm represents a 1st-degree heart block. This rhythm occurs when the AV conduction is slowed, therefore creating a more extended time between the p wave and the QRS complex.

Choice C is incorrect. This rhythm represents a 2nd-degree heart block or Mobitz type 2. This occurs when the AV node is taking longer to conduct. The PR interval may be regular or lengthened. This rhythm indicates problems in the Purkinje system.

Choice D is incorrect. This rhythm is sinus tachycardia, which is a heart rate over 100 bpm.