60. A child is being evaluated for possible appendicitis and…

60. A child is being evaluated for possible appendicitis and complains of nausea and sharp abdominal pain in the right lower quadrant. An abdominal ultrasound is scheduled, and a blood count has been obtained. The child vomits, finds the pain relieved, and calls the nurse. Which should be the nurse’s next action?

A child presents with microcytic, hypochromic anemia. The ph…

A child presents with microcytic, hypochromic anemia. The physician suspects iron deficiency anemia. Further laboratory testing reveals a normal total serum iron and iron-binding capacity; however, the zinc protoporphyrin level was very high. A urinary screen for porphyrins was positive. Erythrocytic basophilic stippling was noted on the peripheral smear. Which of the following laboratory tests would be best applied to this case?