True or False, the following is the biological chain of infection: Infectious agent, Reservoir, Portal of exit, means of transmission, Portal of entry, break the link.

True or False, normal urine pH range is 3.5 – 6.0.

True or False, early stages of organic acidemias include severe vomiting, metabolic acidosis, hypoglycemia, ketonuria, increased serum ammonia. 

True or False, Phenylketonuria is seen 1 in 10,000 – 30,000 births.

True or False, color, clarity, blood, protein, nitrite, leukocyte esterase, and possibly glucose can be observed during the microscopic screening.

True or False, oncotic pressure decreased from hypoproteinemia can cause the build up of fluid. 

True or False, Columnar epithelial cells seen in bronchoalveolar fluid is indicative of a good sample. 

True or False, Serous fluid that is to be sent to the Microbiology department for culturing should be collected in a sodium polyanethol sulfonate tube. 

True or False, Clue cells are used as a diagnostic tool for bacterial vaginosis caused by Gardnerella vaginalis. 

True or False, Fetal age can be estimated by analyzing fetal urine creatinine.