The mother of a 5-year-old boy brings him into the clinic because of a firm swelling around one of his testes. What diagnosis is suggested?

The glomerular filtration rate (GFR) is considered the best measure of renal function. What is used to estimate the GFR?

Explain the process of bacterial transformation and making a genetically a modiefied bacterial to make human insulin. as we modeled in Lab. 

When trying to educate a patient about the release of free radicals and the role they play in formation of atherosclerosis, which of the following statements is most accurate?

Epididymitis can be sexually transmitted, or it can be caused by a variety of other reasons, including abnormalities in the genitourinary tract. What are the most common causes of epididymitis in young men without underlying genitourinary disease?

Trichomoniasis is an STI that can occur in either sex. Men carry the protozoan in the urethra and prostate and remain asymptomatic. This anaerobic protozoan can cause a number of complications. What is a risk factor for trichomoniasis in both men and women?

Metabolic acidosis has four main causes. Which laboratory test is used to determine the cause of metabolic acidosis?

Passive immunity is immunity that is transferred from another source and lasts only weeks to months. What is an example of passive immunity?

A 4-year-old boy has had otitis media with effusion (OME) for several weeks, and his condition has recently progressed to acute otitis media (AOM). What is the primary difference between OME and AOM?

Mercury is a toxic substance, and the hazards of mercury-associated occupational and accidental exposures are well known. What is the primary concern for the general public in regard to mercury poisoning today?