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.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is because the AP’s statement constitutes an intentional tort, which is a wrong that the defendant knew or should have known would be caused by their actions. An assault is defined as intentionally putting another person in reasonable apprehension of an imminent harmful or offensive contact.
The AP’s threat of using restraints and force-feeding the client could cause the client to fear for their safety and dignity, which is an assault.
Choice B is wrong because Battery is wrong because battery is defined as intentional causation of harmful or offensive contact with another person without that person’s consent.
The AP did not actually touch the client or carry out the threat, so there was no battery.
Choice C is wrong because Negligence is wrong because negligence is an unintentional tort, which occurs when the defendant’s actions or inactions were unreasonably unsafe.
The AP did not act or fail to act in a way that breached the standard of care or caused harm to the client, so there was no negligence.
Choice D is wrong because Malpractice is wrong because malpractice is a type of negligence that involves a professional failing to perform their duties according to the standards of their profession.
The AP did not perform any professional duty or service that was below the standard of care or caused harm to the client, so there was no malpractice.
Correct Answer is B
Explanation
Dabigatran is a blood thinner that is used to prevent strokes or blood clots in people with atrial fibrillation, a type of irregular heartbeat. Dabigatran is sensitive to moisture and can lose its potency if exposed to humidity or heat. Therefore, it is important to store it in the original bottle or blister package that has a desiccant (drying agent) in the cap or cover. The client should also close the cap tightly after each use and keep the bottle away from excessive moisture, heat, and cold.
Choice A is wrong because storing the medication in the refrigerator can expose it to moisture and cause it to break down.
Choice C is wrong because crushing the medication and mixing it with applesauce can alter its absorption and effectiveness.
Choice D is wrong because the medication can be used up to 60 days after opening the bottle as long as it is stored properly. The normal dose of dabigatran for stroke prevention in atrial fibrillation is 150 mg twice a day unless the client has kidney problems or other factors that require a lower dose.
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