A client you are assigned is experiencing arrhythmia. What sign is the client exhibiting?
Heart rate is less than expected reference range.
Irregular heart rate.
Respiratory rate is less than expected range.
Decrease in blood pressure that occurs upon standing, especially from a lying or sitting position.
The Correct Answer is B
Choice A reason: A heart rate below normal (e.g., <60 bpm) indicates bradycardia, not necessarily arrhythmia, which is characterized by irregular rhythm. Irregular heart rate defines arrhythmia. Assuming low rate risks misdiagnosis, potentially missing treatments like antiarrhythmics, critical for stabilizing rhythm and preventing complications in arrhythmic patients.
Choice B reason: Irregular heart rate is the hallmark of arrhythmia, reflecting disrupted electrical conduction (e.g., atrial fibrillation). This sign, detected via pulse or ECG, guides diagnosis and treatment like anticoagulants or cardioversion. Accurate identification ensures timely intervention, critical for preventing stroke or heart failure in patients with cardiac rhythm disturbances.
Choice C reason: Low respiratory rate is unrelated to arrhythmia, which affects heart rhythm, not breathing. Irregular heart rate is the key sign. Assuming respiratory rate misdirects focus, risking neglect of cardiac monitoring or treatment, potentially delaying management of arrhythmia and increasing risks of thromboembolism or hemodynamic instability.
Choice D reason: Decreased blood pressure upon standing (orthostatic hypotension) is unrelated to arrhythmia, which involves irregular heart rhythm. Misidentifying this risks overlooking cardiac signs like irregular pulse, delaying ECG or antiarrhythmic therapy, critical for managing arrhythmia and preventing complications like syncope or heart failure in affected patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: A stethoscope assesses heart sounds, detecting murmurs or irregular beats, but does not measure electrical conduction. It provides auditory data on valve function, not heart rate or rhythm via electrical activity. Electrocardiograms are required for detailed analysis of cardiac electrical patterns, making this choice incorrect.
Choice B reason: A blood pressure cuff measures arterial pressure, reflecting cardiovascular workload, but not electrical conduction. It provides systolic and diastolic values, not heart rhythm or rate data. Electrical activity assessment requires tools like electrocardiograms, rendering this choice irrelevant for the described diagnostic purpose.
Choice C reason: An electrocardiogram (ECG) records the heart’s electrical activity, mapping conduction pathways to assess heart rate and rhythm. It detects arrhythmias, ischemia, or conduction delays by analyzing waveforms like P, QRS, and T, making it the precise tool for evaluating cardiac electrical function, as required by the question.
Choice D reason: Doppler ultrasound evaluates blood flow velocity, used in vascular or fetal assessments, but does not measure cardiac electrical conduction. It lacks the capability to assess heart rate or rhythm through electrical signals, unlike an electrocardiogram, making it an incorrect choice for this diagnostic purpose.
Correct Answer is A
Explanation
Choice A reason: Burning urination, cloudy urine, and urethral pain are classic UTI symptoms, caused by bacterial infection (e.g., Escherichia coli) irritating the urinary tract. Prompt recognition guides antibiotic therapy and hydration, preventing complications like pyelonephritis. Accurate diagnosis ensures timely treatment, critical for relieving discomfort and avoiding infection spread in affected patients.
Choice B reason: Kidney obstruction typically causes flank pain, reduced urine output, or hematuria, not burning urination or cloudy urine. These symptoms align with UTI, not obstruction. Misidentifying risks delaying UTI treatment, potentially leading to kidney damage or sepsis, while unnecessary imaging for obstruction complicates care unnecessarily.
Choice C reason: Stroke presents with neurological symptoms like weakness or confusion, not urinary symptoms like burning or cloudy urine. These indicate UTI, not stroke. Assuming stroke misdirects care, delaying antibiotic treatment for UTI, risking infection progression and overlooking neurological assessment needed for actual stroke symptoms.
Choice D reason: Heart failure causes edema, dyspnea, or fatigue, not urinary symptoms like burning or cloudy urine, which suggest UTI. Misidentifying as heart failure risks neglecting antibiotic therapy, allowing UTI to worsen, potentially causing sepsis. This error diverts focus from cardiac assessment needed for heart failure management.
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