Free NAPLEX QBANK Public Health and Immunizations Questions and Answers 1 — Questions and Answers
Question 1: A 67-year-old patient with no chronic medical conditions presents to the pharmacy for an annual influenza vaccine. The patient's record shows they have completed their primary childhood vaccinations but have not received any pneumococcal vaccines. According to the most current ACIP recommendations, which vaccine should the pharmacist also recommend to this patient?
- Tdap (Tetanus, diphtheria, acellular pertussis)
- Shingrix (Recombinant zoster vaccine)
- Pneumovax 23 (PPSV23) only
- Prevnar 20 (PCV20) (Correct answer)
Correct answer: Prevnar 20 (PCV20)
According to the Advisory Committee on Immunization Practices (ACIP), adults 65 years or older who have not previously received a pneumococcal conjugate vaccine (PCV) should receive a single dose of either PCV20 or PCV15. If PCV15 is used, it must be followed by a dose of PPSV23 at least one year later. PCV20 is a single-dose option that completes the recommendation, making it a primary choice. While Shingrix is recommended for adults 50 and older and Tdap boosters are needed every 10 years, the key age-based recommendation for a vaccine-naive 67-year-old is for pneumococcal disease.
Question 2: Which of the following patient scenarios represents an absolute contraindication to the administration of a live attenuated vaccine, such as the Measles, Mumps, and Rubella (MMR) vaccine?
- A 30-year-old who is currently breastfeeding her 4-month-old infant.
- A 28-year-old woman who is confirmed to be pregnant. (Correct answer)
- A 5-year-old child with a severe egg allergy, including anaphylaxis.
- A 55-year-old man with a mild upper respiratory infection and a temperature of 99.5°F.
Correct answer: A 28-year-old woman who is confirmed to be pregnant.
Live attenuated vaccines are generally contraindicated in individuals who are severely immunocompromised or pregnant due to a theoretical risk of fetal harm. Breastfeeding is not a contraindication. A severe egg allergy is no longer considered a contraindication for the MMR vaccine. A mild illness is a precaution, not a contraindication, and vaccination can typically proceed.
Question 3: A pharmacist is preparing to administer an intramuscular (IM) inactivated influenza vaccine to a 50-year-old male patient who weighs 275 lbs (125 kg). Which needle length is most appropriate to ensure the vaccine is delivered into the deltoid muscle?
- 5/8 inch
- 1 inch
- 1.5 inch (Correct answer)
- 2 inch
Correct answer: 1.5 inch
For an intramuscular injection in the deltoid muscle of an adult male weighing over 260 lbs (118 kg), a 1.5-inch needle is recommended to ensure the vaccine penetrates the subcutaneous fat and reaches the muscle tissue. A 1-inch needle may be too short for this patient, and a 5/8-inch needle is for subcutaneous injections or for IM injections in much smaller adults.
Question 4: A pharmacy's vaccine refrigerator experiences a power failure overnight. In the morning, the digital data logger shows the temperature has been 11°C (51.8°F) for the past 6 hours. The recommended storage temperature is 2°C to 8°C. What is the MOST appropriate initial action for the pharmacist to take?
- Immediately discard all vaccines from the affected refrigerator.
- Administer the vaccines as usual, as the excursion was less than 8 hours.
- Label the exposed vaccines "DO NOT USE," move them to a stable refrigerator, and contact the vaccine manufacturers for guidance. (Correct answer)
- Lower the refrigerator's thermostat to its coldest setting to quickly bring the temperature back into range.
Correct answer: Label the exposed vaccines "DO NOT USE," move them to a stable refrigerator, and contact the vaccine manufacturers for guidance.
During a temperature excursion, the CDC recommends that potentially affected vaccines be immediately isolated and marked "DO NOT USE" to prevent their administration. The vaccines should not be discarded. The next critical step is to contact the vaccine manufacturers and/or the state or local immunization program to obtain specific guidance on whether the vaccines are still viable, as stability data varies by product and excursion details.
Question 5: A 42-year-old landscaper sustains a deep puncture wound from a garden tool contaminated with soil. He believes he had a tetanus shot about 12 years ago but is unsure and has no records. According to ACIP guidelines for wound management, which course of action is most appropriate?
- Administer Tetanus Immune Globulin (TIG) only.
- Clean the wound and recommend a Tdap vaccine within 7 days.
- Administer Tdap vaccine only.
- Administer both Tdap vaccine and Tetanus Immune Globulin (TIG). (Correct answer)
Correct answer: Administer both Tdap vaccine and Tetanus Immune Globulin (TIG).
For a wound that is not clean and minor in a patient with an unknown or incomplete (<3 doses) tetanus vaccination history, ACIP recommends administering both a tetanus toxoid-containing vaccine (Tdap is preferred) and Tetanus Immune Globulin (TIG). Tdap provides active immunity, while TIG provides immediate passive immunity. Administering only one of the two would be insufficient for this high-risk situation.
Question 6: A patient reports to the pharmacy that they developed significant joint pain and a fever of 102°F two days after receiving a routine vaccination. As a healthcare provider, the pharmacist should report this clinically significant adverse event to which national safety surveillance program?
- The Institute for Safe Medication Practices (ISMP)
- The Vaccine Adverse Event Reporting System (VAERS) (Correct answer)
- The FDA MedWatch Program
- The Centers for Medicare & Medicaid Services (CMS)
Correct answer: The Vaccine Adverse Event Reporting System (VAERS)
The Vaccine Adverse Event Reporting System (VAERS) is a national post-marketing safety surveillance program co-managed by the CDC and FDA. Healthcare professionals are encouraged to report any clinically significant adverse events following vaccination to VAERS, even if they are unsure if the vaccine caused the event. This system helps detect new, unusual, or rare adverse events. MedWatch is for drugs and other medical products, while ISMP focuses on medication errors.
Free NAPLEX QBANK Public Health and Immunizations Questions and Answers 1
A 67-year-old patient with no chronic medical conditions presents to the pharmacy for an annual influenza vaccine.
The patient's record shows they have completed their primary childhood vaccinations but have not received any pneumococcal vaccines.
According to the most current ACIP recommendations, which vaccine should the pharmacist also recommend to this patient?