MLS Chemistry Exam Comprehensive Study Guide | Questions with 100% Correct Answers | Verified | 44 Pages

A 4 year old female presents with a palpable abdominal mass, pallor, and petechiae. Based on family history, clinical findings and the patient's physical exam, neuroblastoma is suspected. Which of the following does not support such a diagnosis? - Decreased urinary vanillylmandelic acid A 4 year old male child is brought to the pediatrician because the parents are concerned about the child's frequent falling, which results in bruising. The parents indicate that the child has difficulty running, walking, standing up, climbing stairs and even sitting up straight. The child also appears somewhat weak. Which of the following results is not consistent with the most likely diagnosis? - Moderately elevated ALP A 10 year old female presents with varicella. The child has been experiencing fever, nausea, vomiting, lethargy and disorientation. A diagnosis of Reye syndrome is determined. Which of the following lab results is not consistent with the diagnosis? - Elevated serum bilirubin A 24 year old drug abuser is brought into the emergency department unconscious. He has shallow breaths, looks pale, and is "clammy". Blood gases show the following results: pH = 7.29 PCO2 = 50 HCO3- = 25 What condition is indicated by these results? - Respiratory acidosis, uncompensated A 30 year old pregnant woman has a gestational diabetes mellitus screening test performed at 26 weeks of gestation. Her physician chooses to order a 50-g oral glucose load. Her serum glucose level is 150 mg/dL at 1 hour. What should occur next? - This is suspicious of diabetes mellitus; an oral glucose tolerance test should be performed A 30 year old woman is admitted to the hospital. She has truncal obesity, buffalo humpback, moon face, purple striae, hypertension, hyperglycemia, increased facial hair, acne and amenorrhea. The physician orders endocrine testing. The results are as follows: Urine free cortisol = increased