Which of the following parameters aids in differentiating intrathecal synthesis (synthesis within the cerebrospinal fluid) of protein from a change in permeability of the blood-brain barrier?

The two main classes of porphyrias, according to symptoms, are:

Draw the step-wise mechanism and predict the product for the following reaction.  Post your work to the post-quiz within 10 minutes of completing the quiz.

A diabetic patient is brought to the Emergency Department with a provisional diagnosis of ketoacidosis. The following The following laboratory results are obtained: Test Patient Results Reference Range Sodium 148 mmol/L 135 – 145 mmol/L Potassium 4.9 mmol/L 3.4 – 5.0 mmol/L Glucose 987 mg/dL 70 – 110 mg/dL Creatinine 2.4 mg/dL 0.5 – 1.2 mg/dL Urea Nitrogen 25 mg/dL 7 – 18 mg/dL Urine Ketones Large Negative The calculated serum osmolality for the diabetic patient would most likely be:

The biuret reaction for the analysis of serum protein depends on the number of:

Which of the following laboratory results is usually associated with cystic fibrosis?

Which of the following proteins is present in detectable amounts in the cerebrospinal fluid?

In serum electrophoresis, a bridge between the beta and gamma regions as shown in the image below, is characteristic of:  

Sabrina is a high school volleyball player looking to gain some muscle mass over the summer. You learn that her diet is made up of only about 8% protein. Sabrina’s current weight is 145 pounds. To help her gain lean muscle mass, you calculate a minimum daily protein intake based on the .8g/kg body weight per day recommendation. This calculation indicates that she should consume how many grams of protein per day?

Blood and cerebrospinal fluid (CSF) were collected simultaneously from a 40 year old female and the following results were obtained: Serum Reference Range CSF Reference Range Total      Protein 8.0 g/dL (6.0 – 8.3) Total Protein 50 mg/dL (15 – 40) Albumin 4.0 g/dL (3.4 – 5.4) Albumin 20 mg/dL (10 – 30) Alpha 1 Region 0.3 g/dL (0.2 – 0.4) IgG/Alb Index 1.5 (0.3 – 0.7) Alpha 2 Region 0.7 g/dL (0.5 – 0.9) Beta Region 0.9 g/dL (0.6 – 1.1) Gamma region 1.2 g/dL (0.8 – 1.5) From this data, which of the following conclusions can be made?