Question

atresia can refer to
multiple choice
narrowing of ureters.
pus in urine.
lack of urine.
renal disease.

Explanation:

• "Narrowing of ureters" is related to stricture, not atresia.
• "Pus in urine" is pyuria, not related to atresia.
• "Lack of urine" can result from atresia (closure) of a urinary tract opening, blocking urine flow.
• "Renal disease" is a broad category, not specific to atresia.

Answer:

lack of urine (Note: Wait, actually, atresia in the context of urinary system - but let's re - check. Wait, maybe there's a typo, "atresia" (not "Atresia" as maybe a typo? Wait, the options: "lack of urine" - actually, atresia can refer to a congenital absence or closure of a normal opening. But in urinary terms, maybe the intended answer is "lack of urine" (though more accurately, atresia of urethra etc. can lead to lack of urine flow). Wait, let's analyze the options:

1. Narrowing of ureters is "ureterostenosis" or "ureter stricture".
2. Pus in urine is "pyuria".
3. Lack of urine - if there's atresia (closure) of a urinary passage, it can lead to lack of urine output (retention or lack of flow).
4. Renal disease is a broad term.

So the correct option should be the one with "lack of urine".