A patient admitted to the unit displays the following cardiac rhythm on telemetry. What is the estimated heart rate?
120 beats/minute
80 beats/minute
40 beats/minute
Unable to calculate with the strip provided.
The Correct Answer is B
The RR interval is 7.5 big boxes, multiplied by 10 makes it 75, rounded off is 80 beats per minute.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["125"]
Explanation
To calculate the infusion rate in mL/hr, you can use the formula:
Infusion rate (mL/hr) = Total volume (mL) / Total time (hr)
In this case, the total volume is 1000 mL and the total time is 8 hours.
Infusion rate = 1000 mL / 8 hr
Infusion rate ≈ 125 mL/hr
The nurse should set the IV pump to deliver approximately 125 mL/hr.
Correct Answer is C
Explanation
A. "I have a difficult time falling asleep at night":
Difficulty falling asleep at night is not typically a direct symptom of iron-deficiency anemia. While anemia can lead to fatigue and general tiredness, which might affect sleep quality, insomnia or difficulty falling asleep may have various causes unrelated to anemia. These causes can include stress, anxiety, poor sleep hygiene, or other underlying medical conditions.
B. "I have an increase in my appetite":
This choice is not directly related to iron-deficiency anemia. While some individuals with anemia may experience changes in appetite, such as increased hunger, this symptom is not specific to iron-deficiency anemia alone. An increase in appetite can have various causes, including hormonal changes, dietary changes, medications, or psychological factors.
C. "I have difficulty breathing when walking 30 feet":
This choice is the correct answer. Difficulty breathing, especially during exertion like walking, is a hallmark symptom of iron-deficiency anemia. Anemia reduces the oxygen-carrying capacity of the blood, leading to inadequate oxygen delivery to tissues, which can result in shortness of breath, fatigue, and difficulty with physical activities.
D. "I feel hot all of the time":
Feeling hot all the time is not a specific symptom of iron-deficiency anemia. While anemia can cause symptoms such as fatigue, weakness, pale skin, and shortness of breath, it does not directly lead to a constant feeling of heat or warmth throughout the body. Feeling hot or experiencing excessive sweating could be due to other factors such as hormonal changes, fever, hyperthyroidism, or environmental conditions.
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