Pediculosis
Dermatology, Venereology & Leprosy · Topic 6
Source: NMC CBME Curriculum 2024 · Volume II · Dermatology, Venereology & Leprosy · Topic 6 · combined PDF page 357
Practice questions
- A school-aged child is diagnosed with head-louse infestation. Which organism is the cause?
- A student asks how long the head-louse life cycle takes to complete. Which estimate is reported in the supplied review?
- A child with head lice has a sibling who frequently plays with their heads close together. Which route is most consistent with the usual transmission of head lice?
- Which statement best characterizes fomite transmission of head lice?
- A child with confirmed head lice has scalp itching and excoriations. Which additional finding is a recognized complication of head-louse infestation?
- A patient with severe, neglected head-louse infestation has hair matted together with dirt, discharge and infection. Which term is used for this severe presentation in the supplied review?
- A child has scalp pruritus, but visual inspection is inconclusive. Which method can aid detection of head lice?
- Which finding most directly supports a diagnosis of active head-louse infestation?
- A child has scalp itching and small structures attached to the hair. Which finding, in addition to live lice, supports head-louse infestation according to the supplied evidence?
- A clinician evaluating suspected head lice considers conditions that may resemble the infestation. Which is specifically listed as a diagnostic alternative in the supplied review?
- A child is diagnosed with head lice. Which treatment approach is supported by the supplied review and treatment review?
- A child is treated for head lice, but a close household contact is not assessed. Which management principle is most appropriate based on the supplied treatment review?
- A family reports that head lice returned after an apparently effective pediculicide treatment. Which statement best fits the supplied evidence?
- A school board asks whether a single prevalence estimate from one country should dictate head-louse screening policies everywhere. Which conclusion best reflects the supplied systematic-review evidence?
- A researcher summarizes the worldwide school-age head-louse meta-analysis supplied here. Which pooled estimate was reported?
- In the supplied worldwide meta-analysis of school-age students, which group had the higher pooled prevalence of head lice?
- A patient asks whether head lice are described in the supplied review as vectors of disease. Which response is best supported by that review?
- A patient presents with itching localized to the pubic region. Which ectoparasite is responsible for pediculosis pubis?
- A patient with pediculosis pubis reports a prominent symptom. Which complaint is most characteristic in the supplied guideline?
- Examination of a patient with pubic itching shows blue macules in the pubic region. Which interpretation is most consistent with the supplied guideline?
- A patient is suspected of having pubic pediculosis. Which statement about direct examination is supported by the European guideline?
- A patient with confirmed pubic pediculosis is being started on first-line treatment according to the European guideline. Which option is appropriate?
- A patient with pubic pediculosis requires an option from the second-line therapies listed in the European guideline. Which is one such option?
- A patient with pubic pediculosis assumes that the infestation must have been acquired through sexual contact. Which response best reflects the supplied expert recommendations?
- A clinician is arranging partner management for a patient with pubic pediculosis. What look-back period is specified in the European guideline?
- A public-health team is reviewing circumstances associated with increased incidence of pubic pediculosis in the supplied European guideline. Which setting is specifically noted?
- A clinician is assessing a patient with pubic pediculosis and planning control measures. Which approach is most consistent with the supplied guideline?
- A medical student is comparing the usual clinical clues for head and pubic pediculosis. Which pairing is supported by the supplied literature?
- A child is diagnosed with an infestation caused by Pediculus humanus var. capitis. Which condition is being described?
- A parent asks how head lice are most commonly transmitted between children. Which answer is best supported by the evidence?
- Which sequence correctly lists the developmental stages of the head louse?
- A student asks approximately how long the entire head-louse life cycle takes. Which estimate is supported by the cited review?
- A child has scalp itching, but no lice are seen on a brief visual inspection. Which finding would most directly support active pediculosis capitis?
- A clinician uses a fine-tooth comb on wet hair while assessing a child for head lice. What is the principal purpose of this approach?
- A school-aged child has scalp scaling and small pale particles in the hair, but no live lice are found. Which listed condition is a recognized differential diagnosis of pediculosis capitis?
- A child has particles attached to hair shafts, but repeated examinations show no live lice or viable eggs. Which other head-lice mimic is specifically noted in the cited review?
- A child with head lice has persistent scalp itching and visible scratch marks. Which additional problem is a recognized consequence of scratching and infestation?
- A child with suspected pediculosis capitis has scalp excoriations and palpable cervical and occipital lymph nodes. Which interpretation is most appropriate?
- A caregiver is concerned that a child with head lice will transmit a louse-borne disease. Which statement best reflects the cited review of pediculosis capitis?
- A child is diagnosed with head lice. Which household-level action is supported as part of appropriate management?
- Which combination best reflects the management approach for a child with pediculosis capitis described in the cited review?
- A parent asks which topical agent is specifically highlighted in the cited head-lice treatment review as a commonly used pediculicide. Which is the best answer?
- A child has had apparent improvement after pediculicide use but later develops head lice again. Which conclusion is most appropriate based on the cited review?
- A clinician is asked to apply a single worldwide treatment guideline to all cases of pediculosis capitis. Which statement best reflects the cited review?
- A patient reports itching in the pubic region, and lice are visible on examination. Which organism is the most likely cause?
- A patient with pubic lice asks which symptom is most typical. Which response is best supported by the European guideline?
- A patient with itching in the pubic region has faint blue macules on examination. Which infestation is associated with this finding in the cited guideline?
- During examination of a patient with suspected pubic pediculosis, which diagnostic finding is specifically noted as possible in the European guideline?
- A patient with diagnosed pediculosis pubis asks about guideline-supported first-line treatment. Which option is correct?
- A patient with pubic pediculosis cannot use the guideline's first-line options. Which drug is listed among the second-line therapies?
- A clinician is arranging partner management for a patient with pubic pediculosis. What look-back period is specified by the European guideline?
- A patient assumes that pubic lice must have been acquired through sexual contact because that is the only possible route. Which response best reflects the cited expert recommendations?
- A public-health team is planning services for a population in crowded living conditions with limited sanitation. Which statement about pubic lice is supported by the European guideline?
- A clinician notes that infestation may recur after apparently effective treatment for head lice. Which explanation is most consistent with the epidemiological review?
- A worldwide meta-analysis of head lice among school students reported a pooled prevalence estimate of approximately 19%. Which interpretation is most appropriate?
- In the worldwide meta-analysis of pediculosis capitis among school students, which sex-specific pattern was reported?