The nurse in a family practice clinic is reviewing the patients scheduled for appointments.Which of these statements is true regarding routine laboratory testing in the following individuals?

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In infancy (and childhood),laboratory tests are performed only when undernutrition is suspected,or if the child has an illness.However,lead and iron levels should be tested at 9 to 12 months of age.During adolescence,laboratory evaluation of hemoglobin,hematocrit,and urinalysis are performed.Many laboratory values are monitored during pregnancy,and older adults should be monitored for signs of renal insufficiency and over- or underhydration.

The Nurse in a Family Practice Clinic Is Reviewing the Patients