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

Answer and Explanation

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.

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Correct Answer is B

Explanation

A) Fever and cardiac dysrhythmias:
Fever and cardiac dysrhythmias are not the hallmark signs of an intracerebral hemorrhage (ICH) following thrombolytic therapy. While fever can occur in the aftermath of a stroke, it is more commonly linked to infection or other complications. Cardiac dysrhythmias can occur in stroke patients due to autonomic dysfunction or other underlying conditions but are not specific to a hemorrhagic complication.

B) Decline in neurological status and elevated blood pressure:
A decline in neurological status (e.g., deterioration of consciousness, confusion, or focal deficits) and elevated blood pressure are classic signs of an intracerebral hemorrhage (ICH) following thrombolytic therapy, especially when tissue plasminogen activator (tPA) is administered. tPA works by dissolving blood clots but increases the risk of bleeding. An ICH could present with sudden worsening neurological symptoms, such as decreased level of consciousness, weakness, or sensory loss, and elevated blood pressure is a compensatory response to the hemorrhage.

C) Abdominal distention and anorexia:
Abdominal distention and anorexia are not typical indicators of an intracerebral hemorrhage following tPA therapy. These symptoms may indicate other issues, such as gastrointestinal problems or metabolic imbalances, but they are not directly related to hemorrhagic complications following thrombolytic therapy for stroke.

D) Positive Coombs test and low urine output:
A positive Coombs test indicates the presence of antibodies against red blood cells, which may suggest hemolytic anemia or an autoimmune process. Low urine output can result from a variety of conditions, including kidney dysfunction, dehydration, or shock, but these are not specific indicators of an intracerebral hemorrhage following tPA.

Correct Answer is ["2.5"]

Explanation

Ordered Dose: The doctor has prescribed Diltiazem at a rate of 2.5 mg per hour. This means the patient needs to receive 2.5 milligrams of Diltiazem every hour.

Medication Concentration: The medication is supplied as 125 mg of Diltiazem in 125 mL of fluid. This translates to a concentration of 1 mg of Diltiazem per 1 mL of solution.

Since the medication concentration is 1 mg/mL, delivering 2.5 mg of Diltiazem per hour requires infusing 2.5 mL of the solution per hour.

Therefore, the nurse should set the IV pump to deliver 2.5 mL/hr of the Diltiazem solution.

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When using an ECG rhythm strip to quickly estimate the ventricular rhythm for a client, the nurse should:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is caring for client who has had a stroke and who received tissue plasminogen activator(t-PA) 6 hours ago. The nurse identifies which of the following symptoms are indications of an intracerebral hemorrhage post thrombolytic therapy?

Correct Answer is B

Explanation

A patient is to receive a continuous infusion of Diltiazem at 2.5 mg hr for Atrial fibrillation, The medication is supplied 125 mg of Diltlazem in 125 mL of IV fluid. At what rate should the nurse set the IV pump? (round to the nearest tenth)

Correct Answer is ["2.5"]

Explanation

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