A nurse is caring for a client in a cardiac unit. Using the five criteria for ECG analysis information, the nurse interprets the client's ECG as which of the following rhythm interpretations?Heart Rate: 59 bpmRhythm: RegularPresence of P waves: One P wave for every QRS complexPR interval: 0.20 secondsQRS complex duration: 0.10 seconds
Ventricular tachycardia
Sinus tachycardia
Sinus bradycardia
Normal sinus rhythm
The Correct Answer is C
A) Ventricular tachycardia: Ventricular tachycardia is characterized by a rapid heart rate exceeding 100 bpm, typically arising from abnormal ventricular activity. In this case, the heart rate is 59 bpm, which does not support this interpretation. Additionally, ventricular tachycardia usually presents with wide QRS complexes and no discernible P waves, neither of which is true in this scenario.
B) Sinus tachycardia: Sinus tachycardia is defined by a heart rate exceeding 100 bpm originating from the sinoatrial (SA) node, with a regular rhythm and normal P waves. The heart rate of 59 bpm in this client is too low for a diagnosis of sinus tachycardia, making this option incorrect.
C) Sinus bradycardia: Sinus bradycardia occurs when the heart rate is less than 60 bpm, with a regular rhythm and a normal PR interval and QRS duration. The provided data shows a heart rate of 59 bpm, a regular rhythm, one P wave for every QRS complex, a PR interval of 0.20 seconds, and a QRS duration of 0.10 seconds, which aligns perfectly with the criteria for sinus bradycardia.
D) Normal sinus rhythm: Normal sinus rhythm typically presents with a heart rate of 60-100 bpm, a regular rhythm, and appropriate P waves for each QRS complex. Given the heart rate of 59 bpm, this does not meet the criteria for normal sinus rhythm, as it falls below the acceptable range.
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Correct Answer is D
Explanation
A) Blood pressure 102/76: While this blood pressure reading is on the lower side, it does not typically warrant withholding carvedilol unless the client exhibits symptoms of hypotension, such as dizziness or fainting. Carvedilol is an antihypertensive, but the reading itself is not critically low enough to necessitate holding the medication.
B) Temperature of 100.3 F: A mild fever at this temperature does not directly relate to carvedilol administration. It may indicate an underlying infection or inflammation, but it is not a contraindication for administering the medication. Monitoring the client’s temperature is important, but it does not require notifying the healthcare provider in this context.
C) Respiratory rate 10: A respiratory rate of 10 breaths per minute indicates bradypnea, which can be concerning. However, it is not the primary reason to withhold carvedilol unless the client shows significant respiratory distress. Monitoring is essential, but the decision to withhold the medication would depend on the overall clinical picture.
D) Heart rate of 49: A heart rate of 49 bpm is considered bradycardia and is a significant concern when administering carvedilol, a beta-blocker that can further decrease heart rate. It is essential to hold the medication and notify the healthcare provider, as this bradycardia could lead to potential adverse effects or complications. Monitoring the client's heart rate is crucial in managing their medication safely.
Correct Answer is A
Explanation
A. "Diuretics are the first line therapy to control hypertension.": This statement is accurate. Thiazide diuretics are commonly recommended as first-line treatment for mild hypertension, as they help reduce blood volume and lower blood pressure effectively.
B. "Reaching your goal blood pressure will occur within 2 months.": While treatment can lead to improvements in blood pressure, the timeline for reaching target levels can vary significantly among individuals based on adherence to lifestyle changes and medication. It's important to communicate that achieving the goal may take longer than two months.
C. "Plan to add saturated fats to 10 percent of your daily calorie intake.": This recommendation is misleading. Guidelines generally suggest limiting saturated fats to less than 10 percent of total daily calories to promote heart health, not adding them.
D. "Limit your alcohol consumption to three drinks a day.": This statement is also inaccurate. For most adults, the recommendation is to limit alcohol to no more than two drinks per day for men and one drink per day for women to help manage blood pressure effectively.