The nurse is examining a 10-month-old boy who was born 10 weeks early. Which finding is cause for concern?

A. “This is a vasomotor response caused by cooling or warming": While vasomotor responses can cause changes in skin color due to temperature changes, acrocyanosis specifically refers to blue discoloration of the hands and feet due to reduced peripheral circulation, not necessarily due to temperature changes.

B. “This is normal her circulatory system will take a few days to adjust”: While it's true that newborns may have transient circulatory changes as their circulatory system adapts after birth, acrocyanosis specifically refers to a benign condition characterized by persistent blue discoloration of the extremities unrelated to circulatory adjustments.

C. "Let's watch her carefully to make sure she does not have a circulatory problem": While it's important to monitor infants for any signs of circulatory problems, acrocyanosis is typically a

benign and self-limiting condition that does not require intervention unless accompanied by other concerning symptoms.

D. "Your daughter has acrocyanosis; this is causing her blue hands and feet.”: This response provides an accurate explanation for the blue discoloration of the infant's hands and feet. Acrocyanosis is a common and benign condition in newborns characterized by blue discoloration of the extremities due to peripheral vasoconstriction, which gradually resolves over the first few days to weeks of life.

A. Absorption of drugs administered by subcutaneous injection is increaseD. Subcutaneous absorption can vary based on factors such as blood flow and tissue characteristics, but it is generally slower and more variable compared to intramuscular absorption.

B. Absorption of intramuscularly administered drugs is fairly constant: Intramuscular absorption tends to be more consistent compared to subcutaneous absorption. However, absorption rates can still be affected by factors such as muscle mass and blood flow.

C. Topical drugs are absorbed more quickly in young children than adults: Topical drug absorption can be influenced by factors such as skin thickness and permeability, but absorption rates may not necessarily be faster in young children compared to adults.

D. Oral drugs are absorbed more quickly in children than adults: This statement is generally incorrect. While gastrointestinal transit time may be faster in children, other factors such as

gastric pH and enzymatic activity can affect oral drug absorption, and absorption rates may not always be faster in children compared to adults.