A 12-month-old child has a capillary lead level reading of 15 μg/dL. Based on this finding, the nurse practitioner should:
consider this a normal capillary lead level and rescreen in a year.
confirm the results with a venous blood sample.
refer the child for chelation therapy.
recommend an inspection of the patient's home for lead contamination.
The Correct Answer is B
Rationale:
A. A capillary lead level of 15 μg/dL is above the reference level of concern; it is not considered normal, so rescreening in a year is inappropriate.
B. Capillary (fingerstick) lead measurements can be affected by contamination and are used for initial screening. Elevated results should always be confirmed with a venous blood sample before taking further action.
C. Chelation therapy is reserved for significantly elevated venous lead levels (typically ≥45 μg/dL in children); it is not indicated at this stage without confirmation.
D. Home inspection for lead contamination is important if elevated lead levels are confirmed, but the first step after an abnormal capillary reading is to confirm with a venous sample.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. By 3 months, the plantar grasp reflex may still be present; disappearance occurs later.
B. At 4 months, the reflex is gradually fading but not fully absent in all infants.
C. The plantar grasp reflex, in which the infant curls the toes when the sole of the foot is stroked, typically disappears by around 8 months of age as voluntary control over the toes develops.
D. By 12 months, the reflex is expected to be fully absent, and persistence beyond this age may indicate neurologic abnormalities.
Correct Answer is B
Explanation
Rationale:
A. Metabolic acidosis may cause rapid breathing or lethargy but is not primarily indicated by fever.
B. In infants younger than 3 months, a temperature greater than 100.4°F (38°C) is concerning for a serious bacterial or viral infection due to their immature immune systems. Even mild fevers in this age group warrant prompt evaluation for sepsis, urinary tract infections, or meningitis.
C. Renal artery disease does not typically present with isolated fever in young infants.
D. Congenital heart defects may cause cyanosis, tachypnea, or poor feeding, but fever is not a primary sign.
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