Meningococcemia Nursing Care Management

Meningococcemia moves fast. A child who looked like a viral URI a few hours ago can be in shock with a spreading petechial rash by the time you reassess. Your job is to recognize it early, get parenteral antibiotics in fast, and support perfusion while the team works. This is one of the few diseases where minutes change the outcome.

What Is Meningococcemia?

Meningococcemia is dissemination of meningococci into the bloodstream.

Neisseria meningitidis is an encapsulated gram-negative diplococcus. Patients present with one of three pictures: meningitis, meningitis with meningococcemia, or meningococcemia without obvious meningitis.

Pathophysiology

The core lesion is widespread vascular injury: endothelial necrosis, intraluminal thrombosis, and perivascular hemorrhage.

The organism binds endothelial cells tightly via type IV pili, forms microcolonies on the apical surface, and invades the subarachnoid space, producing meningitis in 50%-70% of cases. As anoxia hits vital organs and massive DIC develops, multiple organ failure, shock, and death can follow.

Statistics and Incidences

From 2006-2015, 7,924 cases of meningococcal disease were reported, an average annual incidence of 0.26 cases per 100,000 population.

Of invasive cases, 30%-50% present with meningitis alone, 40% have meningitis with bacteremia, and 7%-10% have bloodstream invasion alone. Mortality stays around 10%, though some specialist centers have brought it below 5%. Carriage of Neisseria meningitidis runs about 2% in children younger than 2 years, 5% in children up to 17 years, and 20-40% in young adults. Disease is somewhat more common in males (1.2 cases per 100,000) than females (1 case per 100,000), and most common in children aged 6-36 months. US and Northern European cases peak in winter; African Meningitis Belt cases climb at the end of the dry season.

Clinical Manifestations

Early symptoms are nonspecific, which is exactly what makes this dangerous.

A nonspecific prodrome of cough, headache, and sore throat comes first, followed by a few days of upper respiratory symptoms, rising temperature, and chills. Then malaise, weakness, myalgias, headache, nausea, vomiting, and arthralgias set in. The giveaway is a petechial rash, usually on the trunk and legs, that can evolve into purpura rapidly.

Assessment and Diagnostic Findings

Early labs are often nonspecific. Definitive diagnosis means recovering meningococci from blood, CSF, joint fluid, or skin lesions.

A CBC, platelet count, BUN, creatinine clearance, and coagulation studies evaluate for consumptive coagulopathy. Gram-negative diplococci may show up in punch biopsy and needle aspiration of skin lesions, in buffy coat preparations, or from joint fluid. Biopsy from acute cases often shows leukocytoclastic vasculitis, thrombosis, and organisms. Meningococcal PCR rapidly diagnoses CSF infection. A slide agglutination test using polyclonal antibodies identifies capsular polysaccharide antigens for serogrouping; ELISA with monoclonal antibodies identifies outer membrane proteins (PorB and PorA) for serotyping and serosubtyping. On lumbar puncture, organisms appear in the CSF in roughly half of patients with meningococcal meningitis.

Medical Management

Early antibiotics reduce mortality, so any patient with a meningococcal rash gets parenteral antibiotics by IV or IM route as soon as the diagnosis is suspected. Do not wait for confirmation.

Give chemoprophylaxis to close household, daycare, and nursery contacts of sporadic cases. Ciprofloxacin, ceftriaxone, and rifampicin are the common choices. Patients with meningitis or fulminant disease are at risk of vomiting, so keep them NPO until they improve substantially on antimicrobials. Match activity to severity; bed rest for suspected cases, and the sickest patients are bed bound. The group C conjugate vaccine (serogroup C polysaccharide conjugated to protein CRM197) gives young children immunogenic protection and was administered to all UK children during 1999-2000.

Pharmacologic Management

Antimicrobials treat active infection or protect close contacts of Neisseria meningitidis.

Early antibiotic therapy lowers mortality. In community management, a patient with a meningococcal rash should receive parenteral benzyl penicillin by IV or IM route as soon as the diagnosis is suspected. Inotropic agents support circulation in shock. Osmotic diuretics raise plasma and renal tubular fluid osmolality to control ICP during elective intubation. Mannitol can lower subarachnoid-space pressure by creating an osmotic gradient between CSF and plasma, but it is not for long-term use. Corticosteroids modify the immune response. Inactivated bacterial vaccines help prevent and control serogroup C outbreaks.

Nursing Management

Nursing Assessment

In 2015, CDC implemented enhanced meningococcal disease surveillance. The current Council of State and Territorial Epidemiologists (CSTE) case classification (2015) is:

Suspected: clinical purpura fulminans without a positive blood culture, or unidentified gram-negative diplococci isolated from a normally sterile body site (blood or CSF).

Probable: detection of Neisseria meningitidis antigen in formalin-fixed tissue by immunohistochemistry (IHC), or in CSF by latex agglutination.

Confirmed: detection of N. meningitidis-specific nucleic acid from a normally sterile site by validated PCR, or isolation of N. meningitidis from a normally sterile site (blood, CSF, or less commonly synovial, pleural, or pericardial fluid) or from purpuric lesions.

Nursing Diagnosis

Based on assessment, the major diagnoses are: Ineffective Tissue Perfusion (Cerebral) related to cerebral edema; Hyperthermia related to abnormal temperature regulation; Acute Pain related to increased intracranial pressure; Disturbed Sensory Perception related to decreased LOC; Anxiety related to a threat to or change in the child's health status; Deficient Knowledge related to lack of exposure to information; and Risk for Injury related to altered neurologic regulatory function.

Nursing Care Planning and Goals

The child returns to normal vital signs, is alert and oriented with age-appropriate motor, cognitive, and sensory function and normal urine specific gravity; maintains body temperature within normal range; expresses comfort and relief of pain; maintains normal LOC; stays free of injury. Parents experience decreased anxiety and verbalize understanding of the cause and treatment plan.

Nursing Interventions

Support cerebral perfusion. Monitor vital signs and neurologic status and watch for signs of increased intracranial pressure, including rising restlessness, moaning, and guarding. Keep the head and neck midline with a small pillow for support. When repositioning, avoid bending the knee and pushing heels against the mattress. Elevate the head of the bed 30° and avoid neck and hip flexion.

Manage temperature. Assess for dehydration (dry mouth, sunken eyes, sunken fontanelle, low concentrated urine output), lower temperature gradually with a tepid sponge bath, maintain fluid intake as tolerated, and give antipyretics as indicated.

Control pain. Keep the room quiet and darkened, turn and position carefully, limit stimulation and visitors, and give antibiotics and corticosteroids as prescribed.

Maintain LOC. Use the pediatric Glasgow coma scale and watch for cerebral edema (dizziness, headache, irregular breathing, neck pain, nausea, vomiting). Elevate the head of the bed 30° to 45° with the head neutral, reorient as needed, and monitor anticonvulsant drug levels.

Reduce family anxiety. Encourage parents to voice concerns and questions, stay with or visit the child, and help with care (holding, feeding, bathing, clothing, diapering). Involve them in decisions and clarify misinformation in plain language, keeping explanations consistent with what other staff and physicians have said about disease process and transmission.

Educate caregivers. Assess their knowledge and readiness to help, and teach in clear language using pictures, pamphlets, videos, and models. Cover medication action, dosage, timing, frequency, side effects, and expected results, and provide written instructions and a schedule. Stress finishing the full antibiotic course, and teach them to report elevated temperature, poor feeding or anorexia, irritability or other behavior or LOC changes, and decreased hearing.

Evaluation

Goals are met when the child has normal vital signs, is alert and oriented with age-appropriate function and normal urine specific gravity, maintains normal temperature and LOC, expresses comfort and pain relief, and stays free of injury, and when parents report decreased anxiety and understanding of the cause and plan.

Documentation Guidelines

Document individual findings and behaviors, cultural and religious beliefs and expectations, the plan of care, the teaching plan, responses to interventions and teaching, and progress toward outcomes.