NCLEX-PN

Periods of Communicability: The period of communicability is the duration when a pathogen can be transmitted to others. It varies among microorganisms; some have brief periods while others have longer ones. Incubation and Latent Periods: The incubation period is the time from initial exposure to the onset of infection symptoms. It varies due to factors like host conditions and microorganism characteristics. The latent period is the time between infection and infectiousness. Signs and Symptoms of Infection: Infections trigger local and systemic signs. Local signs include pain, redness, heat, swelling, and dysfunction. The inflammatory process defends against tissue damage, involving vascular response and exudate response. Systemic signs include fatigue, chills, hyperthermia, malaise, tachypnea, tachycardia, nausea, vomiting, and more, specific to the infection. Different infections cause varied symptoms, like urinary infection signs including urgency and dysuria. Portal of Entry: The portal of entry is where pathogens enter the body. For example, E. coli infections result from fecal-oral transmission, where the pathogen exits through feces and enters through the mouth Stages of Infection: ●​ Incubation period ●​ Prodromal phase with fatigue and malaise ●​ Illness stage with specific symptoms ●​ Convalescence stage of recovery and symptom cessation

Infections Infection is a condition caused by the invasion and multiplication of harmful microorganisms , such as bacteria, viruses, fungi, or parasites, within the body. These microorganisms can disrupt normal bodily functions and lead to various symptoms, ranging from mild to severe. Infections can be localized to a specific area or spread throughout the body, becoming systemic. Nurses need to understand the

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