Nclexpn Quiz: Immunizations And Catch Up Identification
20 questions · exam conditions
0:00
Immunizations And Catch Up IdentificationQuestion 1 of 20

The LPN/VN is assisting with routine vaccine storage checks in a clinic. Which statement about vaccine storage requirements is correct?

Varicella and MMRV vaccines must be stored frozen at negative 50 to negative 15 degrees Celsius; MMR may be stored frozen at those temperatures or refrigerated at 2 to 8 degrees Celsius.
Vaccines such as DTaP and hepatitis B maintain full potency when stored at room temperature between 20 and 25 degrees Celsius, so a refrigerator is not required for these routine immunizations.
Inactivated influenza vaccine requires frozen storage at negative 20 degrees Celsius to maintain its antigenicity, and it loses potency if refrigerated at 2 to 8 degrees Celsius.
Routine vaccines, including live and inactivated types, may be stored together in a single refrigerator compartment without separation, because the recommended temperature range of 2 to 8 degrees Celsius applies to each vaccine.
← Back to quizzes

Nclexpn Quiz

Nclexpn Quiz: Immunizations And Catch Up Identification

Practice Immunizations And Catch Up Identification in Nclexpn with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Immunizations And Catch Up Identification, giving you a quick way to practice the rules, question types, and explanations that matter most for Nclexpn.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

The LPN/VN is assisting with routine vaccine storage checks in a clinic. Which statement about vaccine storage requirements is correct?

  1. Varicella and MMRV vaccines must be stored frozen at negative 50 to negative 15 degrees Celsius; MMR may be stored frozen at those temperatures or refrigerated at 2 to 8 degrees Celsius. (correct answer)
  2. Vaccines such as DTaP and hepatitis B maintain full potency when stored at room temperature between 20 and 25 degrees Celsius, so a refrigerator is not required for these routine immunizations.
  3. Inactivated influenza vaccine requires frozen storage at negative 20 degrees Celsius to maintain its antigenicity, and it loses potency if refrigerated at 2 to 8 degrees Celsius.
  4. Routine vaccines, including live and inactivated types, may be stored together in a single refrigerator compartment without separation, because the recommended temperature range of 2 to 8 degrees Celsius applies to each vaccine.
Explanation: The statement about varicella and MMRV storage is correct. Varicella and MMRV are live attenuated vaccines that require frozen storage at –50 to –15 °C, while MMR may be kept frozen or refrigerated at 2–8 °C. The other statements are incorrect. DTaP and hepatitis B vaccines must be refrigerated at 2–8 °C; storing them at room temperature would reduce potency. Inactivated influenza vaccine also requires refrigeration, not frozen storage, which would destroy it. Finally, vaccines do not all share the same temperature requirements—varicella and MMRV need freezing, while most others need refrigeration—so they cannot be stored together without careful separation. Always follow the manufacturer's storage guidelines.

Question 2

A client undergoing chemotherapy for leukemia asks the LPN/VN whether any vaccines can be given during treatment. Which type of vaccine is contraindicated in this client?

  1. Inactivated influenza vaccine, which is made from killed virus.
  2. Pneumococcal polysaccharide vaccine containing purified bacterial capsular antigens.
  3. Recombinant subunit zoster vaccine containing a viral protein.
  4. Live attenuated vaccines such as MMR and varicella. (correct answer)
Explanation: Live attenuated vaccines, such as MMR and varicella, contain weakened live viruses that can replicate and cause active infection in a client whose immune system is suppressed by chemotherapy. Therefore, they are contraindicated in immunocompromised clients. The other options—inactivated influenza vaccine, pneumococcal polysaccharide vaccine, and recombinant subunit zoster vaccine—do not contain live organisms. Inactivated influenza vaccine is made from killed virus; pneumococcal polysaccharide vaccine contains purified bacterial capsular antigens; recombinant subunit zoster vaccine contains a viral protein. These are not contraindicated on the basis of immunosuppression, although the immune response may be reduced. The LPN/VN should question any order for a live attenuated vaccine and report it to the RN for review.

Question 3

The PN is preparing to administer an influenza vaccine to an adult client. The client states, "I got the flu shot last year and I still got sick, so I don't think it works." Which response by the PN is most appropriate?

  1. The vaccine can sometimes cause a mild case of the flu.
  2. It's possible you were exposed to the flu before the vaccine became fully effective, or you caught a different virus. (correct answer)
  3. You must have a weak immune system if you got sick anyway.
  4. The vaccine is not 100% effective, but it is required for all our clients.
Explanation: This response provides accurate, non-judgmental information. It takes about two weeks for the body to develop antibodies after vaccination. It's also possible the client had an illness caused by a different respiratory virus. This reinforces teaching and addresses the client's concern.

Question 4

A 7-year-old child presents for a physical. The immunization record indicates the child only received one dose of the Hepatitis B vaccine as a newborn. What is the PN's priority action?

  1. Inform the parent that the series must be restarted.
  2. Prepare to administer the second dose of the Hepatitis B vaccine today. (correct answer)
  3. Tell the parent that the child is too old to complete the series.
  4. Administer the second and third doses of the vaccine today to catch up.
Explanation: Immunization series are never restarted, regardless of the time elapsed between doses. The child should receive the second dose, and a plan will be made to administer the third dose at the appropriate interval.

Question 5

The PN is preparing to administer routine immunizations to a 15-month-old child. The child's medical history indicates a diagnosis of a congenital immunodeficiency disorder. The PN should notify the RN and question the administration of which vaccine?

  1. Diphtheria, tetanus, acellular pertussis (DTaP)
  2. Inactivated poliovirus (IPV)
  3. Measles, mumps, rubella (MMR) (correct answer)
  4. Pneumococcal conjugate (PCV13)
Explanation: The MMR vaccine is a live attenuated virus vaccine. Live vaccines are contraindicated in individuals with severe immunodeficiency because they can cause a severe or fatal infection. The PN has a responsibility to recognize and report this potential contraindication.

Question 6

The PN is preparing to administer the first dose of the DTaP vaccine to a 2-month-old infant. Which piece of data is most important for the PN to collect from the parent before administering the vaccine?

  1. The infant's weight and length percentile.
  2. Whether the infant has any siblings in daycare.
  3. If the infant had a severe allergic reaction to the Hepatitis B vaccine given at birth. (correct answer)
  4. The date of the infant's last bowel movement.
Explanation: The most critical safety check before administering any vaccine is to screen for contraindications and precautions. A history of a severe allergic reaction (anaphylaxis) to a previous dose of a vaccine or to a vaccine component is a contraindication to further doses.

Question 7

An 18-year-old client is preparing to live in a college dormitory. The PN is reviewing the client's immunization record. The record shows a primary dose of meningococcal conjugate (MenACWY) vaccine was given at age 12. Which action should the PN anticipate?

  1. Informing the client that no further meningococcal vaccines are needed.
  2. Preparing to administer a booster dose of the MenACWY vaccine. (correct answer)
  3. Reporting to the RN that the client needs to start the series over.
  4. Administering the meningococcal B (MenB) vaccine instead of a MenACWY booster.
Explanation: A booster dose of the MenACWY vaccine is recommended for adolescents at age 16. This is especially important for those entering settings like college dormitories where the risk of meningitis outbreaks is higher.

Question 8

A 9-month-old infant received the first dose of MMR vaccine 2 weeks ago while traveling internationally. The mother brings the infant to the clinic today requesting the second dose. What is the PN's most appropriate action?

  1. Administer the second dose of MMR as requested.
  2. Inform the mother that the minimum interval between MMR doses is 28 days. (correct answer)
  3. Tell the mother the second dose is not needed until the child is 4 years old.
  4. Report the mother to the RN for non-compliance with the schedule.
Explanation: The minimum interval between two doses of a live virus vaccine, such as MMR, is 4 weeks (28 days). Administering a dose before this minimum interval would make it invalid. The PN should reinforce this correct scheduling information.

Question 9

The parent of a 2-month-old infant calls the clinic the day after receiving routine immunizations. The parent reports the infant's temperature is 99.9°F (37.7°C), the infant is irritable, and there is redness at the injection site. What instruction should the PN reinforce?

  1. Bring the infant to the emergency department immediately.
  2. These are common reactions and should resolve within a day or two. (correct answer)
  3. Apply a cool, damp compress to the injection site for comfort.
  4. Administer a dose of infant acetaminophen if needed for fever or discomfort.
Explanation: Low-grade fever, mild irritability, and localized redness and swelling are common, expected, and self-limiting side effects following routine immunizations. This response provides appropriate reassurance and reinforces what the parent should expect.

Question 10

The PN is administering the first dose of the human papillomavirus (HPV) vaccine to a 13-year-old. The parent asks when the child will need to return for the next dose. Which is the best response by the PN?

  1. The second and final dose should be given in 6 to 12 months. (correct answer)
  2. Your child will need two more doses, at 1 month and 6 months from today.
  3. A single dose is sufficient for this age group.
  4. The next dose is due when your child turns 16 years old.
Explanation: For individuals who start the HPV vaccine series before their 15th birthday, a two-dose schedule is recommended. The second dose should be administered 6 to 12 months after the first dose. This is the correct information to reinforce.

Question 11

An adult client receiving an annual influenza vaccine asks, "Why do I need this every year when other shots last for many years?" What is the best information for the PN to reinforce?

  1. Your immunity from the vaccine wears off after one year.
  2. The viruses that cause influenza often change each year. (correct answer)
  3. Getting the vaccine annually is a requirement from public health.
  4. The vaccine is made weaker each year to reduce side effects.
Explanation: The primary reason for annual influenza vaccination is that influenza viruses constantly change (a process called antigenic drift). The vaccine composition is reviewed each year and updated to match the strains predicted to be most common during the upcoming flu season.

Question 12

The PN is reviewing the immunization record of a 16-year-old client during a clinic visit. The record shows the client received the first dose of HPV vaccine 13 months ago but no additional doses. What should be the PN's priority action?

  1. Document that the client is current with HPV vaccination.
  2. Schedule the client for the next dose in 6 months.
  3. Report to the RN that the client is overdue for the second HPV dose. (correct answer)
  4. Advise the client that the series must be restarted.
Explanation: The PN should identify that the client is overdue for the second HPV dose and report this finding to the RN. Since the client started the series after age 15, a three-dose schedule is required. The second dose should have been given 1-2 months after the first dose. It is within the PN's scope to identify missed vaccinations and report to the RN for follow-up action.

Question 13

The PN is reviewing the immunization record of a 4-year-old child. The record shows the child received three doses of DTaP, but the last dose was at 18 months. The child is up to date on all other immunizations. Which action should the PN anticipate?

  1. Administering the fourth dose of DTaP today. (correct answer)
  2. Scheduling the child to return at age 5 for the next DTaP.
  3. Informing the parent that the child's DTaP series is complete.
  4. Reporting to the RN that the child needs to restart the DTaP series.
Explanation: The DTaP schedule includes five doses total. This child has received three doses with the last at 18 months. At age 4, the child is due for the fourth dose. The fifth dose will be given at school entry (4-6 years old).

Question 14

The PN is collecting data on a 45-year-old client with a history of type 2 diabetes. When reviewing the client's immunization status, the PN should identify the need to reinforce teaching about which vaccine?

  1. Measles, mumps, rubella (MMR)
  2. Human papillomavirus (HPV)
  3. Pneumococcal polysaccharide vaccine (PPSV23) (correct answer)
  4. Rotavirus (RV)
Explanation: Adults aged 19–64 years with certain chronic medical conditions, including diabetes mellitus, are at increased risk for pneumococcal disease and should receive the pneumococcal vaccine.

Question 15

A 12-month-old child is in the clinic for routine immunizations. While reviewing the medical record, the PN notes the child had a seizure within 3 days of receiving the DTaP vaccine at 6 months of age. What is the PN's priority action?

  1. Administer the scheduled immunizations as ordered.
  2. Ask the parent if the seizure was associated with a fever.
  3. Document the finding and proceed with administering MMR and Varicella only.
  4. Notify the registered nurse (RN) of this finding before any vaccines are given. (correct answer)
Explanation: A seizure following a previous dose of DTaP is a precaution for future doses. It requires careful consideration by the RN and primary healthcare provider. The PN's scope of practice requires reporting this significant finding to the RN before proceeding. Making a decision to withhold or administer a vaccine is outside the PN's scope.

Question 16

The PN is preparing to administer an influenza vaccine to an adult client. The client states, "I got the flu shot last year and I still got sick, so I don't think it works." Which response by the PN is most appropriate?

  1. The vaccine can sometimes cause a mild case of the flu.
  2. It's possible you were exposed to the flu before the vaccine became fully effective, or you caught a different virus. (correct answer)
  3. You must have a weak immune system if you got sick anyway.
  4. The vaccine is not 100% effective, but it is required for all our clients.
Explanation: This response provides accurate, non-judgmental information. It takes about two weeks for the body to develop antibodies after vaccination. It's also possible the client had an illness caused by a different respiratory virus. This reinforces teaching and addresses the client's concern.

Question 17

The PN is collecting data on a 45-year-old client with a history of type 2 diabetes. When reviewing the client's immunization status, the PN should identify the need to reinforce teaching about which vaccine?

  1. Measles, mumps, rubella (MMR)
  2. Human papillomavirus (HPV)
  3. Pneumococcal polysaccharide vaccine (PPSV23) (correct answer)
  4. Rotavirus (RV)
Explanation: Adults aged 19–64 years with certain chronic medical conditions, including diabetes mellitus, are at increased risk for pneumococcal disease and should receive the pneumococcal vaccine.

Question 18

The PN is preparing to administer the first dose of the DTaP vaccine to a 2-month-old infant. Which piece of data is most important for the PN to collect from the parent before administering the vaccine?

  1. The infant's weight and length percentile.
  2. Whether the infant has any siblings in daycare.
  3. If the infant had a severe allergic reaction to the Hepatitis B vaccine given at birth. (correct answer)
  4. The date of the infant's last bowel movement.
Explanation: The most critical safety check before administering any vaccine is to screen for contraindications and precautions. A history of a severe allergic reaction (anaphylaxis) to a previous dose of a vaccine or to a vaccine component is a contraindication to further doses.

Question 19

An 18-year-old client is preparing to live in a college dormitory. The PN is reviewing the client's immunization record. The record shows a primary dose of meningococcal conjugate (MenACWY) vaccine was given at age 12. Which action should the PN anticipate?

  1. Informing the client that no further meningococcal vaccines are needed.
  2. Preparing to administer a booster dose of the MenACWY vaccine. (correct answer)
  3. Reporting to the RN that the client needs to start the series over.
  4. Administering the meningococcal B (MenB) vaccine instead of a MenACWY booster.
Explanation: A booster dose of the MenACWY vaccine is recommended for adolescents at age 16. This is especially important for those entering settings like college dormitories where the risk of meningitis outbreaks is higher.

Question 20

A 9-month-old infant received the first dose of MMR vaccine 2 weeks ago while traveling internationally. The mother brings the infant to the clinic today requesting the second dose. What is the PN's most appropriate action?

  1. Administer the second dose of MMR as requested.
  2. Inform the mother that the minimum interval between MMR doses is 28 days. (correct answer)
  3. Tell the mother the second dose is not needed until the child is 4 years old.
  4. Report the mother to the RN for non-compliance with the schedule.
Explanation: The minimum interval between two doses of a live virus vaccine, such as MMR, is 4 weeks (28 days). Administering a dose before this minimum interval would make it invalid. The PN should reinforce this correct scheduling information.