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Chapter 66. Vaccines and Immunizations

Which of the following can safely be given to a 6-month-old child who had an allergic reaction to the pertussis vaccine?

a. DTaP

b. Tdap

c. Td

d. DT

Answer d is correct. DT is indicated for the prevention of diphtheria and tetanus in children younger than 7 years. It does not contain the pertussis vaccine. It should be used in children who have previously had an allergic reaction to the pertussis vaccine.

Answer a is incorrect. DTaP is indicated for the prevention of diphtheria, tetanus, and pertussis in children younger than 7 years. However, it contains the pertussis vaccine and should not be used in a patient who has had an allergic reaction to the pertussis vaccine.

Answer b is incorrect. Tdap is FDA-approved for use as a single booster dose in adolescents and adults between the ages of 11 and 64. ACIP recommends it for patients as young as 7 years and adults over the age of 65 years as a single booster dose due to the current pertussis outbreak. It also contains the pertussis vaccine. It should not be used in a 6-month-old who is allergic to the pertussis vaccine.

Answer c is incorrect. Even though Td does not contain the pertussis vaccine, it is indicated for use as a booster dose in adolescents and adults over the age of 7 years. It would not be appropriate to use this vaccine in a 6-month-old child.

Which of the following diphtheria and tetanus vaccines can be used in adults as the decennial (every 10 years) booster dose? Select all that apply.

a. Td

b. DT

c. Tdap

d. DTaP

Answer a is correct. Adolescents and adults will require a booster dose of the pertussis vaccine once in their lifetime. In 2019, Advisory Committee on Immunization Practices (ACIP) voted to allow either Td or Tdap vaccine for the decennial booster, tetanus prophylaxis for wound management, and catch-up immunization schedule for persons age 7 and older.

Answer c is correct. Adolescents and adults will require a booster dose of the pertussis vaccine once in their lifetime. In 2019, ACIP voted to allow either Td or Tdap vaccine for the decennial booster, tetanus prophylaxis for wound management, and catch-up immunization schedule for persons age 7 and older.

Answer b is incorrect. DT is only indicated for children younger than 7 years who have a contraindication ...

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