Fiebre de las Montañas Rocosas

Question 1

A 23-year-old woman comes to the emergency department because of headache, fever, rash, and vomiting for the past 2 days. She also noticed that she has been extremely sensitive to light. The patient states she has never experienced this combination of symptoms before, and has not recently traveled outside of the country or has any recent sick contacts. Upon further history, patient revealed that she had recently gone camping with a few friends. Physical examination of the patient shows a petechial rash on the extremities (including palms of hands and soles of the feet) and chest, as well as conjunctivitis present bilaterally. Based on the patient’s presentation, which of the following is the most likely diagnosis?

Answer 1

Fiebre de las montañas rocosas por Ricketsi ricketsii

Question 2

Agente etiológico causante de la fiebre de las montañas rocosas

Answer 2

Ricketssia ricketsii

Question 3

Ricketsia ricketsii es un ______(bacilo/coco), gram____ (negativo/positivo), que se transmitie a partir de ______(el suelo/vector)

Answer 3

Bacilo; Gram negativo; vector

Question 4

Vector que transmite ricketsia ricketsii

Answer 4

Garrapata dermatocentor

Question 5

Zonas endémicas para infección por ricketsia ricketsii

Answer 5

Sureste y zona central-sur de USA

Question 6

Características clínicas de la fiebre de las montañas rocosas

Answer 6

• Fiebre, Cefalea y Rash eritamatoso palidecente en brazos y muñecas, palmas y plantas y con progresión diseminada petequial con el tiempo
• Mialgias
• Conjuntivitis bilateral
• Sintomas de SNC
• Sintomas gastrointestinales

Question 7

Son las principales condiciones clínicas que particularmente generan un rash a nivel de palmas y plantas

Answer 7

Fiebre de montañas rocosas; Sífilis secundaria; Cosackie virus; Reacciones adversas a medicamentos

Question 8

Tratamiento de elección para fiebre de montañas rocosas por ricketsia ritcketsii

Answer 8

Doxiciclina