A couple seeks counseling about the risk of their child developing a recessive disorder. The woman is affected and upon further testing it is determined that the man is a carrier. Which of the following is true?

Choice A reason: Anuria, which is the absence of urine production, is not a typical symptom of acute pyelonephritis. This condition usually presents with symptoms related to inflammation and infection of the kidneys rather than complete cessation of urine output.

Choice B reason: Edema, or swelling due to fluid accumulation, is more commonly associated with chronic kidney diseases or conditions like nephrotic syndrome. Acute pyelonephritis primarily involves an active infection and inflammation rather than fluid retention.

Choice C reason: Fever is a common and significant symptom of acute pyelonephritis. This condition is an infection of the kidneys that often presents with systemic signs of infection such as fever, chills, and malaise. Patients may also experience flank pain, nausea, and vomiting.

Choice D reason: Hypertension, or high blood pressure, can be seen in chronic kidney disease but is not a hallmark symptom of acute pyelonephritis. The acute infection of the kidneys primarily manifests with fever, pain, and urinary symptoms rather than elevated blood pressure.

Choice A reason: Renal stones, also known as kidney stones, are a common complication of gouty arthritis. Gout is caused by the accumulation of uric acid crystals in the joints, leading to inflammation and pain. High levels of uric acid in the blood can also lead to the formation of uric acid stones in the kidneys. These stones can cause severe pain, urinary obstruction, and increase the risk of urinary tract infections. Therefore, patients with gout are at a higher risk of developing renal stones due to the elevated uric acid levels.

Choice B reason: Cholelithiasis, or gallstones, is not directly associated with gouty arthritis. Gallstones are formed from cholesterol or bilirubin in the gallbladder and are more commonly related to conditions such as obesity, diabetes, and certain liver diseases. While they can cause significant health issues, they are not a typical complication of gout.

Choice C reason: Liver failure is not a common complication of gouty arthritis. While liver disease can occur due to other underlying conditions or as a side effect of medications used to treat gout, it is not directly caused by the elevated uric acid levels or the inflammation characteristic of gout.

Choice D reason: Myocarditis, which is inflammation of the heart muscle, is not typically associated with gouty arthritis. Myocarditis can be caused by infections, autoimmune diseases, or other factors, but it is not a known complication of elevated uric acid levels or gout.