A microscopic examination of the sample taken from a skin lesion indicates hyphae. What type of
infection might this indicate? (Fungal)
Under
... [Show More] microscopic exam, hyphae are long, thin and branching and indicate dermatophytic infections.
Hyphae are typical in tinea pedis, tinea cruris, and tinea corporis.
A child with a sandpaper-textured rash probably has: (Strep infection)
Streptococcal infections can present as a sandpaper-textured rash that initially is felt on the trunk.
Rubeola, measles, produces a blanching erythematous “brick-red” maculopapular rash that begins on
the back of the neck and spreads around the trunk and then extremities. Varicella infection produces the
classic crops of eruptions on the trunk that spread to the face. The rash is maculopapular initially and
then crusts. Roseola produces a generalized maculopapular rash preceded by 3 days of high fever.
A 40-year-old female patient presents to the clinic with multiple, painful reddened nodules on the
anterior surface of both legs. She is concerned. These are probably associated with her history of:
(ulcerative colitis)
These nodules describe erythema nodosum. These are most common in women aged 15-40 years old.
They are typically found in pretibial locations and can be associated with infectious agents, drugs, or
systemic inflammatory disease like ulcerative colitis. They probably occur as a result of a delayed
hypersensitivity reaction to antigens. It is not unusual to find polyarthralgia, fever, and/or malaise that
precede or accompany the skin nodules.
A patient is diagnosed with tinea pedis. A microscopic examination of the sample taken from the
infected area would likely demonstrate: (hyphae)
Under microscopic exam, hyphae are long, thin and branching, and indicate dermatophytic infections.
Hyphae are typical in tinea pedis, tinea cruris, and tinea corporis. Yeasts are usually seen in candidal
infections. Cocci and rods are specific to bacterial infections.
When can a child with chickenpox return to daycare? (After all lesions have crusted)
Chickenpox is highly contagious and can be spread via respiratory secretions from an infected person or
by direct contact from the vesicle fluid from lesions on the skin or mucus membranes. The usual
incubation period is about 2 weeks but can be as long as 21 days or as short as 10 days. The greatest
period of infectivity is 48 hours prior to the onset of the rash and until all the skin lesions have crusted
over.
A patient with a primary case of scabies was probably infected: (3-4 weeks ago)
The incubation period for scabies is about 3-4 weeks after primary infection. Patients with subsequent
infections with scabies will develop symptoms in 1-3 days. The classic symptom is itching that is worse at
night, coupled with a rash that appears in new areas over time.
The nurse practitioner examines a patient who has had poison ivy for 3 days. She asks if she can
spread it to her family members. The nurse practitioner replies: (“No, transmission does not occur
from the blister’s contents”) [Show Less]