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TL;DR

Fever (Pyrexia): Temperature above 100.4°F (38°C) from infection, inflammation, or tissue injury.

By Valenke Exam Prep Team·Last updated 2026-06-02

Fever (Pyrexia)

CNA NNAAPMEDICAL ASSISTANTNREMT EMT

Definition

Temperature above 100.4°F (38°C) from infection, inflammation, or tissue injury.

Workplace Applications

Applying fever (pyrexia) in daily practice as a nursing assistant:

Equipment & Tools

Temperature above 100.4°F (38°C) from infection, inflammation, or tissue injury. Recognition, measurement, and reporting tested on CNA, MA, and EMT exams.

Resident care connections: Right to refuse treatment including medications, procedures, and activities. Right to communicate freely with phone access, mail unopened, visitors at reasonable hours.

Regulatory Context

Regulatory context for fever (pyrexia) includes federal and state requirements. Healthcare facilities must comply with CMS Conditions of Participation, state licensure requirements, and accreditation standards (Joint Commission or AAAHC). Non-compliance can result in citations, fines, or loss of Medicare/Medicaid reimbursement.

Safety Considerations

Safe practice of fever (pyrexia) requires proper body mechanics and fall prevention:

Practical Example

Practical Application: When performing ambulation assist (related to fever (pyrexia)):

  1. Stand on weaker side
  2. If falling: ease to floor, protect head
  3. Walk at resident pace
  4. Use gait belt
  5. Apply non-skid footwear

Gait belt goes around waist, not chest

Differential Diagnosis

When studying fever (pyrexia), carefully distinguish it from related but distinct concepts: body temperature, vital signs, infection control. Exam questions often test your ability to select the most specific and appropriate answer when multiple options seem partially correct. Look for the option that most completely addresses the scenario presented.

Why It Matters

Recognition, measurement, and reporting tested on CNA, MA, and EMT exams.

Related Terms

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Frequently Asked Questions

How does a CNA assist with fever (pyrexia)?
For fever (pyrexia): Oral care: Apply lip moisturizer; Position at 45 degrees or side-lying if unconscious; Brush teeth/dentures with soft brush. Safety: Unconscious: position to side, suction available.
How should a CNA communicate about fever (pyrexia)?
For fever (pyrexia): Therapeutic silence: allow time for the resident to process and respond. Report behavioral changes to the nurse: withdrawal, aggression, crying, confusion. Use open-ended questions to encourage residents to share feelings.
What body mechanics should be used when performing fever (pyrexia)?
For fever (pyrexia): Push rather than pull when moving objects or residents. Keep load close to body to reduce spinal strain. Bend at the knees and hips, not at the waist.