Of all the hepatitis letters, Hep A is the “nice” one. It gets better on its own and doesn’t become chronic. But “nice” doesn’t mean “skip it,” because NCLEX loves to ask how it spreads, who needs precautions, and what to teach. Here are my notes before the practice test.
Table of Contents
What is Hepatitis A?
Hepatitis A is a viral infection of the liver caused by the hepatitis A virus (HAV). It is usually mild, self-limiting, and does not become chronic.
- Spread by the fecal–oral route (contaminated food or water, close contact, and unwashed hands).
- Outbreaks are linked to contaminated shellfish, raw produce, and food handlers who didn’t wash their hands.
- Incubation is about 2 to 7 weeks (average around 4 weeks).
- Watch Out For: dehydration, and rarely acute liver failure, especially in older adults or people with existing liver disease.
- Safety Precaution: Standard precautions, plus contact precautions for clients who are diapered or incontinent.
Pathophysiology
The virus is swallowed, travels to the liver, and multiplies in liver cells. The liver damage doesn’t come from the virus itself, but from the immune system attacking the infected cells. This causes inflammation, and bile can’t flow normally, which leads to jaundice.
- Virus is shed in stool before symptoms appear, so people spread it without knowing.
- Lasting immunity develops after infection.
Assessment and Diagnostic Findings
Clinical presentation: Three phases.
- Pre-icteric (prodromal): fatigue, nausea, vomiting, loss of appetite, low-grade fever, and right upper quadrant pain.
- Icteric: jaundice (yellow skin and sclera), dark urine, clay-colored stools, and itching.
- Recovery: symptoms fade over weeks.
Laboratory findings
- IgM anti-HAV confirms current or recent infection.
- AST and ALT are markedly elevated.
- Bilirubin is elevated.
NCLEX Tip: IgM = recent infection. IgG = past infection or vaccination (immune).
Medical Management
- Supportive care: rest, fluids, and nutrition. There is no specific antiviral.
- Prevention: HAV vaccine (routine for children and for at-risk adults) and immune globulin after exposure.
- Avoid medications and substances that are hard on the liver.
- AVOID: alcohol and unnecessary hepatotoxic drugs, including excess acetaminophen.
Nursing Management
Nursing care focuses on rest, nutrition, comfort, infection control, and education.
- MONITOR: jaundice, stool and urine color, energy level, fluid intake, and signs of liver failure (confusion, bleeding, worsening jaundice).
- Rest: Balance rest with activity as energy returns.
- Nutrition: small, frequent meals. Many clients feel best with their biggest meal in the morning because nausea tends to worsen later in the day.
- Comfort: cool baths or lotion for itching, and keep nails short.
- Infection control: Handwashing with soap and water, especially after toileting and before eating. Contact precautions for incontinence.
- Education: Handwashing, food safety, vaccination for close contacts, and avoiding alcohol and unneeded medications until the liver recovers. Food handlers should stay out of work until cleared.
NCLEX High-Yield Notes
- Fecal–oral transmission. Self-limiting and no chronic stage.
- IgM anti-HAV means active or recent infection.
- Jaundice, dark urine, and clay-colored stools.
- Vaccine for prevention, immune globulin after exposure.
- No alcohol. Be careful with medications that stress the liver.
Mnemonic (HEP A):
- Hand hygiene is the best prevention
- Elevated AST and ALT
- Poop and pee change color (clay stools, dark urine)
- Anti-HAV IgM = active infection
