A 16-year-old patient presents with complaints of diarrhea and malaise for the past 10 days. History reveals that the patient went on a camping trip 3 weeks ago. The patient's stool specimen analysis is positive for Giardia lamblia. The nurse practitioner prescribes metronidazole (Flagyl) and informs the patient that:
a follow-up stool specimen will not be necessary unless symptoms persist.
a follow-up stool specimen is needed within 7 to 14 days.
a follow-up stool specimen is needed within 3 to 4 weeks.
a follow-up stool specimen is needed upon completion of the metronidazole (Flagyl) regimen.
The Correct Answer is C
Rationale:
A. Giardia infections can persist or recur; monitoring is recommended even if symptoms improve.
B. 7–14 days may be too soon for reliable detection of persistent infection, as cysts may not yet be shed consistently.
C. A follow-up stool specimen 3 to 4 weeks after treatment ensures eradication of Giardia lamblia and confirms that the infection has resolved, especially since cyst shedding may be intermittent.
D. Testing immediately upon completion of metronidazole may yield false-negative results due to intermittent cyst shedding; waiting a few weeks provides a more accurate assessment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Inversion of the foot refers to turning the sole inward, not pes planus.
B. Pes planus is the medical term for flat feet, a condition where the arches of the feet are flattened, allowing the entire sole to touch the ground. It can be flexible or rigid and may be asymptomatic in children.
C. Metatarsus refers to the long bones of the foot, not the arch configuration.
D. Pigeon toe (in-toeing) describes a rotational deformity of the feet, not the flattening of the arches.
Correct Answer is D
Explanation
Rationale:
A. Formal neuropsychological testing is more appropriate for older children who can follow complex instructions; it is not suitable for a 2-year-old.
B. IQ tests require certain language and cognitive skills that a 2-year-old may not yet possess, limiting their utility at this age.
C. Radiographic evaluation can identify structural abnormalities but does not assess functional cognitive abilities.
D. Assessment of developmental milestones is the most practical and effective method for detecting cognitive impairment in a 2-year-old. Tracking language, motor, social, and problem-solving skills provides a reliable indication of cognitive development relative to age norms.
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