PTCB IMMUNIZATION CERTIFICATE EVALUATION TEST 2025/2026
QUESTIONS WITH SOLUTIONS GRADED A+
✔✔Using 1" needle, where is a vaccine recommended to be administered in Patients <
12 months? And patients between 12 months - 2 years? - ✔✔Anterolateral aspect of the
thigh
✔✔When administering one or more vaccines, how should they be spaced apart? -
✔✔1" inch apart
✔✔Children 3 years old to 10 years old, what needle length is preferred? - ✔✔5/8" - 1"
deltoid muscle
1" -1.25" for anterolateral thigh
✔✔Needle length for adolescents, aged 11 - 18 years old: - ✔✔1" inch to 1.5" inch
✔✔Needle length for Men/Women <130lbs (<60kg) : - ✔✔5/8" inch needle
✔✔Needle Length for Men/Women 130lbs*152lbs, (60kg-70kg): - ✔✔1"inch needle is
sufficient
✔✔Needle Length for Women 152lbs-200lbs (70-90kg), and Men 152-260lbs (70-
118kg): - ✔✔1" inch - 1.5"inch is recommended
✔✔Women +200lbs (+90kgs) or Men +260lbs (+118kg) - ✔✔1.5" inch needle is needed
✔✔What Live Attenuated vaccine is the only vaccine approved to be administered by
intranasal route? - ✔✔Influenza
✔✔Immunosuppressed persons should not administer what vaccine? - ✔✔Live
Attenuated Influenza Vaccine
✔✔Who should not administer LAIV? - ✔✔People with underlying conditions, pregnant
women, asmatics, people >50 years old, due to higher risk of infection
✔✔TRUE or FALSE, when injecting Td, Tdap and tetanus immune globulin, hepatitus B
and Hepatitus B immunoglobulin, separate limbs should be used for each injection. -
✔✔TRUE
✔✔What are jet injectors? - ✔✔Needle free devices that pressurize liquid medication,
forcing it through a nozzle orifice into a narrow stream to deliver a drug or vacciine
✔✔What temperature should refrigeraed vaccines be stored at? - ✔✔36-46 F degrees
2-8 C degrees
, ✔✔What vaccine will quickly degrade when stored at warmer than recommended
temps, but also if kept at too cold temperature? - ✔✔Varicella
✔✔When should administered expired vaccines be repeated? - ✔✔As soon as possible
✔✔When should Recombinant zoster vaccine be administered after invalid dose? -
✔✔28 days to reduce the burden of adverse reactions which occurs with this vaccine.
✔✔When should dose be repeated after invalid Live Vaccines dose? - ✔✔28 day
interval to reduce the risk of interference from interferon on the subsequent doses.
✔✔What are interferons? - ✔✔a group of signaling proteins made and released by host
cells in response to the presence of several viruses
Example: a virus-infected cell will release interferons causing nearby cells to heighten
their anti-viral defense
✔✔Which Vaccines should be stored in the freezer? - ✔✔MMR, MMRV, Varicella stored
at -50c to -15c (58f to 5f)
✔✔What is primary immunodeficiency defined as? - ✔✔Inherited conditions
✔✔Secondary Immunodeficiencies are? - ✔✔Conditions that are aquired, such as HIV,
hematopoietic malignancies. radiation treatment, and treatment with
immunosuppressive drugs
✔✔What type of vaccine is recommended for immunosuppressed patients? -
✔✔Inactivated Influenza, pneumococcal Vaccine
✔✔Farhenheit to Celsius - ✔✔C = (F-32)/1.8
✔✔Celsius to Farhenheit - ✔✔(C x 1.8) + 32 = F
✔✔What is the Beyond Use Date, for a multidose vial? - ✔✔28 days after being
punctured
✔✔Failure to store and handle vaccines properly can lead to: - ✔✔Financial Loss due to
wastage
Reduction in potency
Inadequate immune response
Poor protection against disease
QUESTIONS WITH SOLUTIONS GRADED A+
✔✔Using 1" needle, where is a vaccine recommended to be administered in Patients <
12 months? And patients between 12 months - 2 years? - ✔✔Anterolateral aspect of the
thigh
✔✔When administering one or more vaccines, how should they be spaced apart? -
✔✔1" inch apart
✔✔Children 3 years old to 10 years old, what needle length is preferred? - ✔✔5/8" - 1"
deltoid muscle
1" -1.25" for anterolateral thigh
✔✔Needle length for adolescents, aged 11 - 18 years old: - ✔✔1" inch to 1.5" inch
✔✔Needle length for Men/Women <130lbs (<60kg) : - ✔✔5/8" inch needle
✔✔Needle Length for Men/Women 130lbs*152lbs, (60kg-70kg): - ✔✔1"inch needle is
sufficient
✔✔Needle Length for Women 152lbs-200lbs (70-90kg), and Men 152-260lbs (70-
118kg): - ✔✔1" inch - 1.5"inch is recommended
✔✔Women +200lbs (+90kgs) or Men +260lbs (+118kg) - ✔✔1.5" inch needle is needed
✔✔What Live Attenuated vaccine is the only vaccine approved to be administered by
intranasal route? - ✔✔Influenza
✔✔Immunosuppressed persons should not administer what vaccine? - ✔✔Live
Attenuated Influenza Vaccine
✔✔Who should not administer LAIV? - ✔✔People with underlying conditions, pregnant
women, asmatics, people >50 years old, due to higher risk of infection
✔✔TRUE or FALSE, when injecting Td, Tdap and tetanus immune globulin, hepatitus B
and Hepatitus B immunoglobulin, separate limbs should be used for each injection. -
✔✔TRUE
✔✔What are jet injectors? - ✔✔Needle free devices that pressurize liquid medication,
forcing it through a nozzle orifice into a narrow stream to deliver a drug or vacciine
✔✔What temperature should refrigeraed vaccines be stored at? - ✔✔36-46 F degrees
2-8 C degrees
, ✔✔What vaccine will quickly degrade when stored at warmer than recommended
temps, but also if kept at too cold temperature? - ✔✔Varicella
✔✔When should administered expired vaccines be repeated? - ✔✔As soon as possible
✔✔When should Recombinant zoster vaccine be administered after invalid dose? -
✔✔28 days to reduce the burden of adverse reactions which occurs with this vaccine.
✔✔When should dose be repeated after invalid Live Vaccines dose? - ✔✔28 day
interval to reduce the risk of interference from interferon on the subsequent doses.
✔✔What are interferons? - ✔✔a group of signaling proteins made and released by host
cells in response to the presence of several viruses
Example: a virus-infected cell will release interferons causing nearby cells to heighten
their anti-viral defense
✔✔Which Vaccines should be stored in the freezer? - ✔✔MMR, MMRV, Varicella stored
at -50c to -15c (58f to 5f)
✔✔What is primary immunodeficiency defined as? - ✔✔Inherited conditions
✔✔Secondary Immunodeficiencies are? - ✔✔Conditions that are aquired, such as HIV,
hematopoietic malignancies. radiation treatment, and treatment with
immunosuppressive drugs
✔✔What type of vaccine is recommended for immunosuppressed patients? -
✔✔Inactivated Influenza, pneumococcal Vaccine
✔✔Farhenheit to Celsius - ✔✔C = (F-32)/1.8
✔✔Celsius to Farhenheit - ✔✔(C x 1.8) + 32 = F
✔✔What is the Beyond Use Date, for a multidose vial? - ✔✔28 days after being
punctured
✔✔Failure to store and handle vaccines properly can lead to: - ✔✔Financial Loss due to
wastage
Reduction in potency
Inadequate immune response
Poor protection against disease
