The Nurse Is Calculating the Rate for a Regular Rhythm

question 39

Multiple Choice

The nurse is calculating the rate for a regular rhythm.There are 20 small boxes between each P wave and 20 small boxes between each R wave.What is the ventricular rate?

• A) 50 beats/min
• B) 75 beats/min
• C) 85 beats/min
• D) 100 beats/min

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Definitions:

B+ Erythrocyte

Refers to a type of red blood cell with B antigen on its surface and Rh factor positive, important in blood transfusion compatibility.

ABO Antigens

Specific markers found on the surface of red blood cells that determine a person's blood group in the ABO blood group system.

+Rh Antigen

A protein present on the surface of red blood cells that denotes the Rh+ blood group, playing a critical role in blood transfusion compatibility.

Agglutination

A reaction in which particles, such as pathogens or red blood cells, clump together, often due to an immune response.