The nurse caring for newborns knows that infants exhibit phenomenal increases in their gross motor skills over the first 12 months of life. Which statements accurately describe the typical infant's achievement of these milestones? Select all that apply.
At 12 months, the infant walks independently.
At 7 months, the infant sits alone with some use of hands for support.
At 9 months, the infant crawls with the abdomen off the floor.
At 1 month, the infant lifts and turns the head to the side in the prone position.
At 2 months, the infant rolls from supine to prone to back again.
Correct Answer : B,D
A. At 12 months, the infant walks independently: Most infants begin walking independently between 12 and 15 months of age, but it's not typically achieved by 12 months.
B. At 7 months, the infant sits alone with some use of hands for support: This is an accurate statement. By around 6 to 8 months, infants develop the ability to sit unsupported, although they may still use their hands for balance.
C. At 9 months, the infant crawls with the abdomen off the floor: Crawling typically begins between 7 and 10 months, but the abdomen may still be close to the floor initially.
D. At 1 month, the infant lifts and turns the head to the side in the prone position: This is an accurate statement. Newborns typically exhibit head control and turning movements when placed on their stomachs (prone position) by around 1 month of age.
E. At 2 months, the infant rolls from supine to prone to back again: Rolling from supine to prone and back may begin around 4 to 6 months, but it's less likely to occur at 2 months.
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Related Questions
Correct Answer is D
Explanation
A. Uses thumb and index fingers in a pincer grasp: The pincer grasp typically develops around 9 to 12 months of age, not at 6 months.
B. Sitting steadily without support: Most infants begin to sit steadily without support between 6 and 8 months of age, so this would be considered a developmental milestone for a 6-month-old.
C. Closed posterior fontanel: The posterior fontanel typically closes by 2 months of age. By 6 months, the posterior fontanel should be closed, so this finding would not be expected.
D. Lateral incisors: By 6 months of age, most infants will have erupted their lower central
incisors. The eruption of the lateral incisors typically occurs around 9 to 13 months of age, so this would be a normal finding for a 6-month-old infant.

Correct Answer is C
Explanation
A. "SIDS is directly correlated with the diphtheria, tetanus, and pertussis vaccines." - This
statement is incorrect. There is no direct correlation between vaccines and SIDS. In fact, research has shown that vaccines are not a cause of SIDS.
B. "SIDS rates have been rising over the last 10 years." - This statement is misleading. SIDS rates have actually been decreasing over the past few decades due to increased awareness and preventive measures.
C. "Placing your child on her back when sleeping will decrease the risk of SIDS." - This statement is accurate. Placing infants on their backs to sleep is one of the most effective
strategies for reducing the risk of SIDS, according to recommendations from pediatric health organizations.
D. "Sleep apnea is the main cause of SIDS." - This statement is incorrect. While sleep apnea is a sleep-related breathing disorder, it is not the main cause of SIDS. SIDS is a complex phenomenon with multiple contributing factors, but sleep position plays a significant role in reducing its risk.
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