APHA Administration Techniques & Routes 3

Question 1

Intradermal vaccine administration requires the needle to be inserted at approximately what angle?

Accepted Answer

10–15 degrees

Answer

Intradermal injections are given at a 10–15 degree angle, nearly parallel to the skin surface, to deposit vaccine within the dermis.

Question 2

Which characteristic confirms a correctly placed intradermal injection?

Accepted Answer

Formation of a pale wheal (bleb) at the injection site

Answer

A pale raised wheal (bleb) appearing under the skin confirms the vaccine was deposited correctly within the dermis.

Question 3

When administering vaccines to a patient who weighs more than 130 kg (obese adult), what needle length adjustment is recommended for deltoid IM injection?

Accepted Answer

Use a 1.5-inch needle

Answer

For adults weighing more than 130 kg, a 1.5-inch needle is recommended to ensure the vaccine reaches deltoid muscle through increased subcutaneous tissue.

Question 4

Which of the following is the correct technique for stretching skin during an IM deltoid injection in an adult?

Accepted Answer

Spread the skin taut at the injection site

Answer

For IM injections, the skin should be spread taut (not bunched) to allow the needle to penetrate cleanly into the muscle.

Question 5

Oral polio vaccine (OPV) is no longer used in the United States. If a patient from another country received OPV, how should their immunization history be recorded?

Accepted Answer

OPV doses count as valid polio vaccine doses toward U.S. schedules

Answer

OPV doses received outside the U.S. are counted as valid polio immunization doses when evaluating a patient's vaccination history.

(APHA) American Public Health Association Immunization Certification Practice Test

(APHA) American Public Health Association Immunization Certification Practice Test

APHA Administration Techniques & Routes 3