A nurse in an urgent care center is assessing a client who reports a sudden onset of irregular palpitations, fatigue, and dizziness. The nurse finds a rapid and irregular heart rate with a significant pulse deficit. Which of the following dysrhythmias should the nurse expect to find on the ECG?
Sinus bradycardia
Sinus tachycardia
Atrial fibrillation
First-degree AV block
The Correct Answer is C
Choice A Reason: This is incorrect. Sinus bradycardia is a slow and regular heart rate that originates from the sinus node. It does not cause irregular palpitations, fatigue, or dizziness, unless the heart rate is very low or the client has underlying cardiac disease.
Choice B reason: This is incorrect. Sinus tachycardia is a fast and regular heart rate that originates from the sinus node. It may cause fatigue or dizziness, but not irregular palpitations or pulse deficit.
Choice C Reason: This is correct. Atrial fibrillation is a fast and irregular heart rate that originates from multiple foci in the atria. It causes irregular palpitations, fatigue, dizziness, and pulse deficit due to ineffective atrial contractions and variable ventricular response.
Choice D Reason: This is incorrect. First-degree AV block is a delay in the conduction of impulses from the atria to the ventricles. It does not affect the heart rate or rhythm, and does not cause any symptoms.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason: This is incorrect because a decreased level of consciousness is a late sign of shock, not an early one. Decreased level of consciousness indicates that the brain is not receiving enough oxygen and blood flow, which can lead to irreversible damage and death.
Choice B Reason: This is correct because increased respiratory rate is an early sign of shock, indicating hypoxia. This finding indicates that the client is experiencing hypoxia, which is a lack of oxygen in the tissues and organs. Hypoxia is a common and early sign of shock, which is a condition where the body's vital organs do not receive enough blood
flow and oxygen due to low blood pressure, low cardiac output, or low blood volume. The client's respiratory rate increases as a compensatory mechanism to increase oxygen intake and delivery.
Choice C Reason: This is incorrect because hypotension is a late sign of shock, not an early one. Hypotension indicates that the blood pressure is too low to maintain adequate perfusion and oxygenation to the vital organs.
Choice D Reason: This is incorrect because anuria is a late sign of shock, not an early one. Anuria indicates that the kidneys are not receiving enough blood flow and oxygen, which can result in acute kidney injury or failure.
Correct Answer is ["A","B","D","E"]
Explanation
Choice a) is correct because copies of insurance cards can help clients access medical care and claim compensation in case of a disaster. Insurance cards can also serve as a form of identification if other documents are lost or damaged.
Choice b) is correct because a whistle can help clients signal for help or locate each other in case of an emergency. A whistle can also deter potential atackers or wild animals.
Choice c) is incorrect because antibiotics are not recommended to be included in a disaster readiness supply kit or “go bag”. Antibiotics are prescription drugs that should only be used under the guidance of a health care provider. Using antibiotics without proper indication, dosage, or duration can cause adverse effects, such as allergic reactions, resistance, or superinfection.
Choice d) is correct because household bleach can be used to disinfect water, surfaces, or wounds in case of a disaster. Household bleach can also be used to create chlorine gas, which can be used as a weapon or a deterrent.
Choice e) is correct because pencil and paper can be used to write down important information, such as contact numbers, medical history, or evacuation plans. Pencil and paper can also be used to communicate with others, especially if there is no access to phone or internet services.
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