When using an ECG rhythm strip to quickly estimate the ventricular rhythm for a client, the nurse should:
use the 3 second markers to count the number of QRS complexes in 6 seconds and multiply by 10
print a 1-minute EGG strip and count the number of QRS complexes
calculate the number of small squares between one QRS complexes and the next one and divide by 1500
count the number of large squares in the R-R interval and divide by 300
The Correct Answer is A
A) Use the 3-second markers to count the number of QRS complexes in 6 seconds and multiply by 10:
The 3-second markers on the ECG strip represent a fixed time interval. By counting the number of QRS complexes in the 6-second interval (i.e., two 3-second markers), you can estimate the heart rate by multiplying the number of QRS complexes by 10. This method is quick and effective for calculating heart rate in an emergency setting, such as in arrhythmias or when time is of the essence.
B) Print a 1-minute ECG strip and count the number of QRS complexes:
While this is another way to assess the heart rate, it is not a quick method, especially in emergency situations. It is more time-consuming because it involves printing out a full strip (or ensuring you have enough data to calculate a full minute). This approach may be useful for detailed analysis but is not optimal for quickly estimating the ventricular rhythm.
C) Calculate the number of small squares between one QRS complex and the next one and divide by 1500:
This method is more complex and is used for calculating the heart rate with a more precise ECG reading. It requires counting the number of small squares between two QRS complexes and dividing by 1500 (the number of small squares in one minute). This method is accurate but not the fastest option for quickly estimating the heart rate during an emergency.
D) Count the number of large squares in the R-R interval and divide by 300:
counting the number of large squares between two R-R intervals and dividing by 300, you get the heart rate. However, this method is less commonly used in emergency situations because it requires more time and may not be as immediate as using the 3-second markers. It is more applicable when doing a detailed analysis of the rhythm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A"]
Explanation
A) There are no obvious symptoms or problems: Ovarian cancer is often referred to as the "silent killer" because it tends to develop without noticeable symptoms in the early stages. When symptoms do appear, they are often vague and nonspecific, such as bloating, abdominal discomfort, or changes in bowel habits. By the time ovarian cancer is diagnosed, it is frequently at an advanced stage, making it more difficult to treat effectively. This lack of early, clear symptoms contributes significantly to the high death rate associated with the disease.
B) Radiation therapy is ineffective because the ovaries are located so deep within the pelvis: While ovarian cancer is located deep within the pelvis, radiation therapy can still be effective for certain types of tumors. However, the primary reason for high death rates is not the location of the ovaries, but the late-stage diagnosis and difficulty in detecting the cancer early.
C) The causative cancer cell is resistant to chemotherapy or radiation: While some ovarian cancer cells may exhibit resistance to treatment, this is not the main reason for the high mortality rate. The real issue is the lack of early detection, as ovarian cancer is often diagnosed when it has already spread beyond the ovaries. Early-stage ovarian cancer may be more responsive to treatment, but by the time symptoms are noticeable, the cancer is often advanced, which limits the effectiveness of chemotherapy and radiation.
D) Ovarian cancer occurs primarily among women over age 70 that also have other complicating health problems: Although the incidence of ovarian cancer increases with age, particularly after age 60, it is not the primary factor contributing to high death rates. Many women diagnosed with ovarian cancer are relatively healthy except for the cancer itself.
Correct Answer is C
Explanation
A) "I agree. Sometimes the adverse effects can be worse than the disease":
While it's important for the nurse to acknowledge the client's concerns, making this statement may not be helpful in this situation. It could unintentionally reinforce fear and anxiety, implying that the chemotherapy's side effects may be worse than the disease itself, which is not always the case. Instead, the nurse should engage the client in a discussion to explore the specific concerns, allowing for tailored support and information.
B) "Someone from the American Cancer Society will be here soon to answer your questions":
While the American Cancer Society can provide valuable support and resources, referring the client to someone else to answer their questions can feel dismissive. The nurse should take the opportunity to listen to the client’s concerns and provide immediate reassurance or information. Direct involvement in the discussion builds trust and allows for more immediate emotional and psychological support.
C) "What is it about the adverse effects that concern you?":
This response is the most appropriate as it encourages the client to express their specific concerns. By asking the client to clarify their worries, the nurse can provide more accurate information, address misunderstandings, and offer reassurance. This open-ended question helps the nurse understand the client's emotions and individual needs, which allows for a more personalized approach in managing anxiety and providing education about the chemotherapy treatment.
D) "I will have your provider discuss the adverse effects with you before the treatment begins":
While it is important for the healthcare provider to discuss the treatment plan and potential side effects, the nurse should not defer the conversation entirely. The nurse plays an essential role in providing ongoing support, educating the client, and answering questions. The nurse can start the conversation and provide information about the common side effects of chemotherapy, offering the opportunity for further discussion with the provider as needed. Deferring the conversation might leave the client feeling unsupported.
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