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
- . 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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. “Would you like to speak to a spiritual advisor?”.
This statement shows respect for the client’s spirituality and offers support without imposing the nurse’s beliefs or values. Spirituality focuses on the significance and purpose of life and can help clients cope with depression and terminal illness.
Choice B is wrong because it implies that the client needs medication to deal with their feelings, which can be dismissive and insensitive.
Antianxiety medication may be appropriate for some clients, but it should not be the first option.
Choice C is wrong because it assumes that the client is ready to discuss advance directives, which may not be the case.
Advance directives are legal documents that specify the client’s wishes for end-of-life care, such as resuscitation, organ donation, or power of attorney.
The nurse should assess the client’s readiness and understanding before initiating this conversation.
Choice D is wrong because it suggests that the client is close to death and needs hospice care, which can be discouraging and frightening. Hospice care is an interdisciplinary team effort that provides palliative care for clients who have a terminal illness and a life expectancy of less than 6 months.
The nurse should explain the benefits of hospice care and obtain the client’s consent before making a referral.
Correct Answer is ["B","D","E","H"]
Explanation
• B: Heart rate 99/min. This is a finding that requires immediate follow-up because it is above the normal range for a 16-year-old client, which is 60 to 100 beats per minute. A high heart rate could indicate anxiety, stress, pain, infection or other conditions that need to be addressed.
• D: Client experiences nightmares. This is a finding that requires immediate follow-up because it could indicate post-traumatic stress disorder (PTSD), which is a mental health condition that can develop after witnessing or experiencing a traumatic event. PTSD can cause distressing symptoms such as nightmares, flashbacks, intrusive thoughts, avoidance, negative mood and hyperarousal. PTSD can interfere with the client’s daily functioning and well-being and requires professional treatment.
• E: Witnessing their family’s death. This is a finding that requires immediate follow-up because it is the most likely cause of the client’s PTSD symptoms and emotional distress. Witnessing the death of one’s family members is a devastating and traumatic experience that can have lasting effects on the client’s mental health. The client may benefit from grief counseling, trauma-focused therapy, medication or other interventions to help them cope with their loss and trauma.
• H: Smoking marijuana to clear their mind. This is a finding that requires immediate follow-up because it indicates that the client is using an illicit substance to self-medicate their emotional pain. Smoking marijuana can have negative effects on the client’s physical and mental health, such as impairing their memory, cognition, judgment, coordination and motivation. It can also increase the risk of addiction, dependence and withdrawal symptoms. The client may need substance abuse counseling, education, referral or other services to help them quit smoking marijuana and find healthier ways to cope with their feelings.
The other findings do not require immediate follow-up for the following reasons:
• A: BP 122/80 mmHg. This is not a finding that requires immediate follow-up because it is within the normal range for a 16-year-old client, which is 110 to 120/70 to 80 mmHg. A normal blood pressure indicates that the client’s cardiovascular system is functioning well and there are no signs of hypertension or hypotension.
• C: Startles easy during thunderstorm. This is not a finding that requires immediate follow-up because it is a normal reaction to a loud noise or a frightening stimulus. The client admits that they have always been afraid of thunderstorms, which suggests that this is not a new or unusual behavior for them. However, the nurse may want to monitor the client’s anxiety level and provide reassurance and comfort during thunderstorms.
• F: Caregiver reporting client acting differently than usual. This is not a finding that requires immediate follow-up because it is a vague and subjective statement that does not specify how the client is acting differently or what changes have occurred in their behavior. The nurse may want to ask the caregiver for more details and examples of how the client has changed since the traumatic event and assess whether these changes are normal or concerning.
• G: Attends school regularly. This is not a finding that requires immediate follow-up because it indicates that the client is maintaining their academic performance and social interactions despite their trauma and grief. Attending school regularly can provide the client with a sense of routine, structure, support and achievement that can help them cope with their situation. However, the nurse may want to check with the client’s teachers and peers to see if they have noticed any changes in the client’s mood, behavior or participation at school.
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