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Author Question: A normal 3-month-old boy has a hemoglobin of 11.2 g/dL. Which of the following is true about his ... (Read 34 times)

tnt_battle

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on: Jun 25, 2018
A normal 3-month-old boy has a hemoglobin of 11.2 g/dL. Which of the following is true about his hemoglobin? It is:
 
  a. Higher than that of a normal full-term newborn
  b. Lower than that of an adult of the same age
  c. Higher than that of a 14 year old of the same sex
  d. The same as that of an adult of the same sex

Question 2

Why is the white count in a normal full-term newborn elevated shortly after birth?
 
  a. A relative loss of plasma occurs.
  b. An absolute increase in neutrophils occurs.
  c. An absolute increase in lymphocytes occurs.
  d. An absolute increase in both neutrophils and lymphocytes occurs.


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canderson530

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: B
Hemoglobin is lower in a 3 month old than that of an adult of the same sex. It is normally higher at birth but quickly begins to decrease so that by 3 months old this would be a normal hemoglobin (abnormal at birth). It is lower than that of both a 14 year old and an adult of the same sex.

Answer to Question 2

ANS: B
An absolute increase in neutrophils occurs within hours of birth; this elevates the white count. Bands and occasionally myelocytes may also be present. At day 2, the count begins to drop progressively, primarily because of an absolute decrease in neutrophils.


tnt_battle

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Reply 2 on: Jun 25, 2018
Gracias!

mcabuhat

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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