ATI RN
Pediatric Immunization Practice Questions Questions
Question 1 of 5
Which of the following key components of the complement pathway can be activated by the lectin, classical, and alternative pathways?
Correct Answer: B
Rationale: C3 is the central component activated by all three complement pathways (lectin, classical, alternative), converging to amplify the response.
Question 2 of 5
What fraction of serum are the antibodies (immunoglobulins) initially found when using lytical techniques (e.g. electrophoresis)?
Correct Answer: B
Rationale: Antibodies (immunoglobulins) are predominantly in the gamma globulin fraction during serum electrophoresis.
Question 3 of 5
Activates the complement system
Correct Answer: D
Rationale: Both IgG and IgM can activate the complement system via the classical pathway.
Question 4 of 5
Which of the following is chiefly found on the surface of B cells as a receptor molecule and is involved in cell activation?
Correct Answer: B
Rationale: IgD is primarily a B cell receptor, alongside IgM, involved in B cell activation.
Question 5 of 5
Which of the following uses the enzyme horseradish peroxidase (HRP)?
Correct Answer: D
Rationale: Both ELISA and Western blotting commonly use horseradish peroxidase (HRP) as an enzyme for signal detection.