The nurse is reviewing an electrocardiogram rhythm strip. The P waves and QRS complexes are regular. The PR interval is 0.16 seconds, and the QRS complexes measure 0.06 seconds. The overall heart rate is 64 beats/minute. Which would be a correct interpretation based on these characteristics?
Sinus bradycardia
Sinus arrhythmia
Sinus tachycardia
Normal sinus rhythm
The Correct Answer is D
A. Sinus bradycardia: Sinus bradycardia is characterized by a regular rhythm with a heart rate less than 60 beats per minute. In this case, the heart rate is 64 beats per minute, which falls within the normal range, not consistent with sinus bradycardia.
B. Sinus arrhythmia: Sinus arrhythmia typically presents as a variation in the R-R interval with respiration, often seen as an irregularity in the heart rate. The provided characteristics describe a regular rhythm, so sinus arrhythmia is not the correct interpretation.
C. Sinus tachycardia: Sinus tachycardia is characterized by a regular rhythm with a heart rate greater than 100 beats per minute. The heart rate in this case is 64 beats per minute, which is not indicative of sinus tachycardia.
D. Normal sinus rhythm: Normal sinus rhythm refers to a regular rhythm with a heart rate between 60 and 100 beats per minute, P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and normal QRS complex duration (less than 0.12 seconds). The provided characteristics, including regular P waves, regular QRS complexes, a PR interval of 0.16 seconds, and a heart rate of 64 beats per minute, align with a normal sinus rhythm interpretation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "Dehydration Is the primary reason for the pain that is experienced during a sickle cell crisis; try to increase your son's fluid intake."
This response is not the best choice because while dehydration can indeed exacerbate sickle cell crises and lead to complications, it is not the primary reason for the pain experienced during a sickle cell crisis. The severe pain during a crisis is primarily due to vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and pain. While adequate hydration is important in managing sickle cell disease, it alone does not address the underlying cause of the pain during a crisis.
B. "We really don't know what causes the pain that is experienced during a sickle cell crisis."
This response is not accurate and not the best choice because the medical community does understand the underlying cause of pain during a sickle cell crisis. It is primarily due to vaso-occlusion, as mentioned earlier, where sickled red blood cells block blood flow in the blood vessels.
C. "Sickled cells get clogged in the blood vessels, preventing blood from getting to the tissues, which causes the severe pain of a crisis."
This response is the best choice because it provides an accurate and clear explanation of why individuals with sickle cell anemia experience severe pain during a sickle cell crisis. It addresses the underlying mechanism of vaso-occlusion, where sickled red blood cells block blood flow in the small blood vessels, leading to tissue ischemia and severe pain.
D. "You will need to discuss this with your doctor. I cannot explain why this pain occurs to your
son."
This response is not the best choice because the nurse should be able to provide basic information about the disease and its symptoms to the mother. It's important for healthcare professionals to educate patients and their families about their condition to improve understanding and facilitate better management and coping strategies.
Correct Answer is A
Explanation
A. Work together to see how they can incorporate healthier choices into the foods enjoyed:
This approach emphasizes collaboration between the nurse and the client, focusing on finding ways to incorporate healthier food choices into the client's diet while considering their food preferences and cultural background. By working together, the nurse can help the client identify suitable substitutions, portion control strategies, and meal planning techniques that align with the dietary recommendations for coronary heart disease. This approach promotes active participation, empowers the client to make informed decisions, and increases the likelihood of long-term adherence to the dietary plan.
B. Tell the client if they do not change their diet, they are going to have a myocardial infarction:
This approach uses fear tactics or negative consequences to motivate behavior change, which is generally not recommended in healthcare settings. Fear-based strategies may lead to increased anxiety, stress, or resistance in the client, ultimately hindering motivation and adherence to the dietary plan. Positive reinforcement, education, and collaborative goal-setting are more effective in promoting behavior change and improving adherence to lifestyle modifications.
C. Give the client a list of foods to choose from:
Providing a list of foods can be a helpful tool in guiding food choices and promoting a balanced diet. However, this approach may not address the client's individual preferences, cultural considerations, or practical challenges in implementing dietary changes. Without personalized guidance and support, the client may struggle to navigate food options effectively and may experience difficulties in adhering to the dietary recommendations.
D. It is okay to cheat because of the medications:
Encouraging cheating or deviating from the dietary plan due to medications undermines the importance of dietary modifications in managing coronary heart disease. It is essential to emphasize the significance of following a heart-healthy diet and lifestyle, as medications alone may not be sufficient to manage the condition effectively. Providing education on medication adherence and dietary guidelines, along with ongoing support, helps reinforce the importance of consistent dietary habits in promoting cardiovascular health.
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