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 D
Explanation
A. Take the iron with dairy products to enhance absorption: This statement is incorrect. Calcium-rich foods, such as dairy products, can inhibit iron absorption. It's recommended to take iron supplements with vitamin C-rich foods or beverages to enhance iron absorption.
B. Limit foods high in fiber due to the risk for diarrhea: While some individuals may experience gastrointestinal side effects such as constipation or diarrhea when taking iron supplements, it is not generally recommended to limit foods high in fiber. Adequate fiber intake is important for overall digestive health.
C. Increase the intake of vitamin E to enhance absorption: Vitamin E does not directly enhance iron absorption. Vitamin C is the nutrient that enhances iron absorption, so increasing intake of vitamin C-rich foods or taking vitamin C supplements along with iron supplements can improve iron absorption.
D. Iron will cause the stools to darken in color: This statement is correct. Iron supplements can cause stools to become dark or even black in color. This is a harmless side effect known as "iron stools" and is caused by the reaction of iron with substances in the digestive tract.
Correct Answer is A
Explanation
A. "If I take my blood pressure and it is normal, I don't have to take my blood pressure pills": This statement reflects a misunderstanding of hypertension management. Blood pressure medications are typically prescribed to help control blood pressure over the long term, regardless of individual blood pressure readings. Stopping medication without consulting a healthcare provider can be dangerous and is not recommended.
B. "When getting up from bed, I will sit for a short period before standing up": This statement demonstrates an understanding of orthostatic hypotension prevention, which is important for clients with hypertension and can be a side effect of certain medications.
C. "I will consult a dietician to help get my weight under control": This statement indicates the client's awareness of the importance of weight management in hypertension control and is a positive step toward healthy lifestyle changes.
D. "I think I'm going to sign up for a yoga class twice a week to help reduce my stress": This statement shows the client's proactive approach to stress reduction, which is beneficial for hypertension management as stress can contribute to elevated blood pressure.
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