NCLEX-RN · Health Promotion and Maintenance · 8 min read
Preventive Screening and Immunizations
- Differentiate immunization schedules, appropriate administration routes, anatomical sites, and absolute contraindications across the lifespan.
- Identify recommended developmental, sensory, and chronic disease screening assessments for pediatric and adult populations.
- Distinguish between primary and secondary cancer prevention strategies, including specific screening intervals and clinical red flags.
Principles of Immunization Across the Lifespan
Immunization schedules are organized to protect individuals at their most vulnerable stages of life, beginning in the newborn period. Infants born to mothers who are hepatitis B surface antigen (HBsAg)-positive or whose status is unknown should receive hepatitis B vaccine within 12 hours of birth, with hepatitis B immune globulin when indicated; for infants of HBsAg-negative mothers, the birth dose is a shared clinical decision under current CDC guidance. Administering this initial vaccine establishes early protection, after which childhood and adolescent schedules continue with age-specific immunizations. For example, the human papillomavirus (HPV) vaccine is routinely recommended starting at age 11 to 12 to prevent cervical, anogenital, and oropharyngeal cancers. The meningococcal conjugate (MenACWY) vaccine is also routinely administered at age 11 to 12, followed by a booster dose at age 16.
Selecting the correct anatomical site and route is essential for vaccine safety and effectiveness. The vastus lateralis muscle is the preferred intramuscular injection site for vaccines in infants and young toddlers because it offers adequate muscle mass. As individuals grow, the deltoid muscle becomes the preferred intramuscular injection site for immunizations in older children and adults. Notably, route variations exist; the rotavirus vaccine is an orally administered live virus vaccine and must never be injected.
Vaccine requirements continue across adulthood and during pregnancy to provide lifelong defense and maternal-fetal protection. Pregnant individuals should receive the Tdap vaccine between 27 and 36 weeks of gestation during each pregnancy to convey passive pertussis immunity to the newborn. Beyond pregnancy, all adults should receive a tetanus and diphtheria (Td or Tdap) booster every 10 years throughout their lifespan. Annual influenza vaccination is recommended for all individuals aged 6 months and older who lack specific contraindications.
Older adults require specific immunizations to target increased vulnerabilities to infectious complications. The recombinant zoster vaccine is recommended as a two-dose series for immunocompetent adults aged 50 and older to prevent herpes zoster. In addition, pneumococcal conjugate vaccination is recommended for adults aged 50 and older, with the specific vaccine and administration schedule determined by the patient's prior pneumococcal vaccination history.
Common mistakes
- Delaying or withholding scheduled immunizations due to minor acute illness, such as an upper respiratory infection with a low-grade fever.
- Injecting the rotavirus vaccine instead of administering it orally.
- Administering live attenuated vaccines (MMR, varicella, intranasal influenza) to pregnant individuals or clients with severe immunocompromise, such as a CD4 count below 200 cells/mm³.
- Assuming that a normal intraocular pressure reading obtained via tonometry definitively rules out glaucoma.
Key points
- Give hepatitis B vaccine within 12 hours of birth to infants of HBsAg-positive or unknown-status mothers; for infants of HBsAg-negative mothers, discuss the birth dose under current guidance; use the vastus lateralis for infants, the deltoid when age and muscle mass permit, and the oral route for rotavirus.
- Live attenuated vaccines (MMR, varicella, intranasal influenza) are contraindicated during pregnancy and in severe immunocompromise (CD4 below 200 cells/mm³); treat post-vaccine anaphylaxis with intramuscular epinephrine.
- Tdap is given between 27 and 36 weeks in each pregnancy, Td or Tdap boosters are required every 10 years for adults, and annual influenza vaccines are recommended for those 6 months and older.
- Universal newborn hearing screening occurs before discharge, pediatric developmental screenings occur at 9, 18, and 30 months, and autism screenings occur at 18 and 24 months.
- Cardiovascular and metabolic prevention includes blood pressure screening from age 18, diabetes screening for overweight adults aged 35 to 70, and one-time AAA ultrasounds for men aged 65 to 75 who smoked.
- Bone mineral density screening using DEXA is recommended for all women aged 65 and older, with a T-score of −2.5 or lower indicating osteoporosis.
- Cancer screening spans cervical cytology starting at age 21, colorectal screening from age 45 to 75, annual lung LDCT for eligible smokers aged 50 to 80, and immediate reporting of suspicious breast changes or ABCDE melanoma signs.
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Sample lesson: Growth and Development Across the Lifespan25 practice questions on this exam
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