Front

What are Rh antigens?

Back

Rh antigens are proteins found on the surface of red blood cells that determine the Rh blood group. If present, the blood type is Rh positive (e.g., A+).

Front

What is the standard compression-to-breath ratio in CPR for adults?

Back

The standard compression-to-breath ratio in CPR for adults is 30 compressions followed by 2 rescue breaths.

Front

What is agglutination in the context of blood transfusion?

Back

Agglutination is the clumping of red blood cells that occurs when incompatible blood types are mixed, often due to the presence of antibodies against the transfused blood.

Front

What does the QRS complex represent in an ECG?

Back

The QRS complex represents the depolarization of the ventricles, which leads to ventricular contraction.

Front

Where was the Rh antigen first discovered?

Back

The Rh antigen was first discovered in the blood of Rhesus monkeys.

Front

What is the function of antibodies in the blood?

Back

Antibodies are proteins produced by the immune system that identify and neutralize foreign objects like bacteria and viruses.

Front

What is the significance of blood type compatibility in transfusions?

Back

Blood type compatibility is crucial in transfusions to prevent adverse reactions, such as agglutination, which can be life-threatening.

Front

What is the role of the heart in the cardiovascular system?

Back

The heart pumps blood throughout the body, supplying oxygen and nutrients to tissues and removing waste products.

Front

What are the main components of the cardiovascular system?

Back

The main components of the cardiovascular system are the heart, blood vessels (arteries, veins, capillaries), and blood.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart.