When reviewing the developmental behaviors of an 8-month-old infant, which of the following behaviors indicates to the nurse the need for follow-up assessments? Standard Text: Select all that apply
1. Unable to sit for brief periods of time without support
2. Moro reflex present
3. Crawling on abdomen
4. Pulls self to standing position
5. Positive Babinski reflex
1,2
Rationale 1: Unable to sit for brief periods of time without support. By the age of 8 months the child should be able to sit for brief periods without support. Some children can sit alone well at this age. The child who is unable to sit for short periods alone needs further testing and evaluation.
Rationale 2: Moro reflex present. The Moro (startle) reflex should disappear between the ages of 4–6 months. The presence of this reflex beyond that age warrants follow-up.
Rationale 3: Crawling on abdomen. Around 6 months of age, infants begin to crawl on their abdomens, so it is expected that an 8-month-old will do this.
Rationale 4: Pulls self to standing position. Some 8-month-old babies may also be able to pull themselves up to a standing position. This is more typical of a 9-month-old.
Rationale 5: Positive Babinski reflex. The Babinski reflex doesn't begin to fade until 12 months, and is absent by the age of 2 years.
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