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

count the number of large squares in the R-R interval and divide by 30C

print a 1-minute ECG strip and count the number of ORS complexes,

count the number of QRS complexes in 6 seconds and multiply by 10.

calculate the number of small squares between one QRS complex and the next one and divide by 1500.

Answer and Explanation

The Correct Answer is C

A.   Counting the number of large squares between R-R intervals and dividing by 30 is not the correct method for estimating the ventricular rate on an ECG strip.
B.   Printing a 1-minute ECG strip and counting the QRS complexes (option B) is accurate but unnecessary for a quick estimation.
C.   The most common and efficient method for estimating the ventricular rate quickly is to count the number of QRS complexes in a 6-second strip (often marked by two dashed lines) and multiply by 10. This gives an estimate of the heart rate per minute.
D.   Counting the number of small squares between QRS complexes and dividing by 1500 is the most accurate method but requires more time and precision than counting QRS complexes in 6 seconds.

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Correct Answer is C

Explanation

A. “I probably will not have any transfusion reactions from my own blood.” - Autologous transfusions
generally have a lower risk of transfusion reactions because they involve the client’s own blood.
B. “This is the blood I’ve been giving for the past 6 weeks for myself.” - This is a correct understanding of the process of autologous blood donation, where the client donates blood for their own use.
C. An autologous blood transfusion involves the collection and storage of a patient's own blood for later transfusion. This significantly reduces the risk of bloodborne infections, such as hepatitis, HIV, and other blood-borne diseases, as the blood is coming from the patient themselves.
D. “Since I have O negative blood, it’s a good thing I’m getting my own blood.” - The client may not need additional teaching here because O negative blood is universally compatible, but the reason they are getting their own blood is due to the autologous donation process, not because of blood type.

A. Cyanosis B. Petechiae C. Epistaxis D. Hematuria

Correct Answer is A

Explanation

A. Cyanosis, or a bluish discoloration of the skin, occurs when there is insufficient oxygen in the blood, which can result from decreased perfusion due to clotting in DIC. It is a sign of poor oxygenation and perfusion.
B. While petechiae (small red or purple spots) are a common manifestation of DIC due to microvascular clotting and bleeding, they are not a sign of decreased perfusion.
C. Epistaxis (nosebleeds) is another bleeding manifestation of DIC but is not indicative of decreased perfusion, which is more closely related to cyanosis.
D. Hematuria (blood in the urine) can occur in DIC due to clotting in the kidneys or urinary tract. However, it is more related to bleeding than to decreased perfusion.

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

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is A

Explanation

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