Which of the following are the correct statements? (Select all that apply)

A. Renal agenesis: failure of an organ (renal) to develop: Renal agenesis is the complete absence of one or both kidneys due to failure of development during fetal life. Bilateral agenesis is often fatal, while unilateral agenesis can be asymptomatic if the remaining kidney functions well.

B. Renal hypoplasia: failure of kidney to develop to normal size and contains fewer renal lobes: In renal hypoplasia, the kidney is structurally normal but smaller than average and contains fewer nephrons or lobes. This congenital condition may be unilateral and asymptomatic or bilateral and lead to renal insufficiency.

C. Renal dysgenesis: failure of an organ (kidney) to develop normally: Renal dysgenesis refers to abnormal development of the kidney structure, resulting in malformations that can impair function. It often involves malformed or nonfunctional renal tissue.

D. Renal dysgenesis: failure of an organ (kidney) to develop: This description better defines renal agenesis rather than dysgenesis, which implies abnormal rather than absent development.

A. Glomerulonephritis: This is an immune-mediated condition involving inflammation of the glomeruli and typically presents with proteinuria, hematuria, hypertension, and edema rather than urinary frequency, burning, or foul-smelling urine. The presence of E. coli and leukocytes does not support this diagnosis.

B. Kidney calculi: Kidney stones may present with flank pain, hematuria, and sometimes nausea or vomiting, but are not usually associated with urinary frequency, burning, or bacterial growth on urine culture. Randi’s symptoms point more toward an infectious etiology rather than a structural obstruction.

C. Lower UTI: cystitis (bladder infection) and possibly lower ureters: The burning, itching, frequent urination, and foul smell are classic signs of cystitis. The absence of flank pain and only a slightly elevated temperature further supports a lower tract infection rather than an upper one.

D. Upper UTI (pyelonephritis): Pyelonephritis typically presents with fever over 101°F, chills, nausea, vomiting, and significant costovertebral angle (CVA) tenderness or back/flank pain. Since Randi denies back pain and has only a mild temperature elevation, an upper UTI is unlikely.