A patient is confirmed to have blood group O. Which antibodies are normally present in the patient's plasma?

Correct answer: C. Anti-A and anti-B

  • A. Anti-A only
  • B. Anti-B only
  • C. Anti-A and anti-B
  • D. No ABO antibodies

Explanation

Group O plasma normally contains both anti-A and anti-B antibodies because the red cells have neither A nor B antigen. Giving incompatible red cells can cause antibody-mediated agglutination and haemolysis.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? support@testustad.com

About Blood and Immunity

Blood and immunity covers plasma, red blood cells, white blood cells, platelets, haemoglobin, blood groups and haemostasis. It explains innate and adaptive defenses, antibodies, lymphocytes, inflammation, vaccination and immune memory, with a distinction between active and passive immunity and between antigen and antibody.

Practise Blood and Immunity

40 free Blood and Immunity MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Anatomy and Physiology for Nursing questions like this

Anatomy and Physiology for Nursing is on 4 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

More Blood and Immunity questions