Answer to Question 1
ANS: C
As a girl begins menstruating, estrogen levels are usually insufficient to stimulate ovulation, and the menstrual periods are generally unpredictable and irregular. As the ovaries mature, regular ovulation and menses are established. Telling the student that all young girls have irregular periods and that her complaint is normal are both poor choices, because they do not give the girl adequate information. She does not need to be seen by her physician for this complaint.
Answer to Question 2
ANS: D
Testosterone secretion causes testicular enlargement, which is the first sign of pubertal changes in males. Girls start puberty about 2 years earlier than boys. Testosterone production causes the first signs of puberty, so saying that this is a late occurrence is incorrect. Breast enlargement usually does not occur in males despite the presence of circulating estrogen.
These school-age childrean are eating a health snack
A nurse shows empathy to a client.
Dose–response relationship
The oxygen sensor provides a quick response at the stoichiometric air–fuel ratio of 14.7:1.
Graduating High School
Respiratory response to increased activity levels