Which of the following best explains the fact that patient specimens are typically assayed at saturating substrate concentrations so that v is at Vmax?
A) To ensure that only the concentration of enzyme in the specimen affects the measured rate
B) To fit the data onto the standard curve generated by "y = mx + b"
C) To more closely mimic the enzymatic reaction as it occurs in vivo where enzymes generally only function at Vmax
D) To prevent inactive enzyme molecules from being mistakenly counted as substrate.
A
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A 52-year-old male is in moderate distress and complaining of nausea and vomiting. He describes a three-day history of left upper quadrant abdominal pain described as sharp and radiating to his back. You note a slightly distended abdomen. He called EMS today when he developed nausea and vomiting. He denies any change of bowel habits and states he has a history of alcoholism. Of the following,
A) Pancreatitis B) Hepatitis C) Peptic ulcer disease D) Gastroenteritis
After successfully delivering a baby, the EMT notes that the protruding umbilical cord is lengthening and a small gush of blood came out of the vagina. The appropriate action would be to:
A) Massage the patient's uterus B) Apply a sanitary pad over the vaginal opening C) Prepare for delivery of the placenta D) Open the vaginal canal using obstetric forceps
Given the following specimens, which one is considered unacceptable for acid-fast culture?
A) Gastric lavage prior to eating B) 24-hour pooled urine C) Blood collected in a heparin tube D) Bone marrow collected in a SPS tube
A patient is admitted with sickle cell anemia with crisis
A. D57.00, D57.3 C. D57.1 B. D57.00 D. D57.819