A nurse is reviewing a client’s cardiac rhythm strips and notes a constant P-R interval of 0.35 seconds.

Which of the following dysrhythmias is the client displaying

Atrial fibrillation.

Complete heart block

First-degree atrioventricular block

Premature atrial complexes

Answer and Explanation

The Correct Answer is C

. Answer and explanation.

The correct answer is choice C, first-degree atrioventricular block.

This is because the PR interval is longer than normal, which indicates a delay in the conduction of electrical impulses from the atria to the ventricles through the AV node. A normal PR interval is 0.12 to 0.2 seconds, or 3 to 5 small squares on the EKG strip.

In this case, the PR interval is 0.35 seconds, which is more than 5 small squares.

Choice A is wrong because atrial fibrillation is a type of arrhythmia where the atria beat irregularly and rapidly, producing chaotic and variable P waves and an irregular ventricular response.

There is no constant PR interval in atrial fibrillation.

Choice B is wrong because complete heart block is a type of arrhythmia where there is no conduction of electrical impulses from the atria to the ventricles, resulting in independent and dissociated atrial and ventricular rhythms.

There are no consistent P waves or PR intervals in complete heart block.

Choice D is wrong because premature atrial complexes are extra beats that originate from the atria and interrupt the normal sinus rhythm.

They produce abnormal P waves that are different from the sinus P waves, and may have a shorter or longer PR interval depending on the timing of the impulse.

However, they do not cause a constant prolongation of the PR interval.

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Correct Answer is C

Explanation

The correct answer is Choice C.

Choice A rationale: While additional staff may be needed, the primary focus during a mass casualty event is triage and immediate care. Choice B rationale: Media relations are important, but the nurse's priority is direct patient care. Choice C rationale: Assessing incoming clients and determining their medical needs is crucial for prioritizing care and allocating resources effectively. Choice D rationale: Discharging stable clients may be necessary in extreme circumstances, but it is not the immediate priority. The focus should be on providing care to the influx of injured patients.

A. Hypertension. B. Hypothyroidism. C. Obesity. D. Herpes zoster.

Correct Answer is D

Explanation

Answer and explanation.

The correct answer is choice D. Herpes zoster is a contraindication for receiving acupuncture treatment because it is an infectious skin disorder that can be transmitted by needles or contact with the affected area. Acupuncture should not be performed on areas of skin that are inflamed, ulcerated, or have sensory deficit.

Choice A is wrong because hypertension is not a contraindication for acupuncture. However, some caution is advised when needling points that may lower blood pressure, such as LI 4, LI 11, ST 36, and SP 6.

Choice B is wrong because hypothyroidism is not a contraindication for acupuncture. In fact, some studies suggest that acupuncture may have beneficial effects on thyroid function and symptoms of hypothyroidism.

Choice C is wrong because obesity is not a contraindication for acupuncture.

Acupuncture may help with weight loss by regulating appetite, metabolism, and hormones.

Some of the absolute contraindications for acupuncture include pregnancy (especially certain points that may induce labor or abortion), medical and surgical emergencies, malignant tumors, bleeding disorders, and use of a demand pacemaker. Some of the relative contraindications include drug or alcohol intoxication, lack of consent, immune deficiency, abnormal heart valves, and fear of needles.

Normal ranges for blood pressure are 120/80 mmHg or lower for systolic and diastolic pressure respectively.

Normal ranges for thyroid-stimulating hormone (TSH) are 0.4 to 4.0 mIU/L.

Normal ranges for body mass index (BMI) are 18.5 to 24.9 kg/m2.

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A nurse is reviewing a client’s cardiac rhythm strips and notes a constant P-R interval of 0.35 seconds. Which of the following dysrhythmias is the client displaying

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A nurse is reviewing a client’s cardiac rhythm strips and notes a constant P-R interval of 0.35 seconds.

Which of the following dysrhythmias is the client displaying