When explanation should the nurse give to a male client on why benign prostatic hyperplasia (BPH) often causes urinary retention?

Choice A reason: Inflammation may occur in prostatitis, not typically in BPH. BPH causes urinary retention via physical obstruction from gland enlargement, not spasms. Inflammation is not the primary mechanism, making this incorrect for explaining why BPH leads to retention in the client’s urinary symptoms.

Choice B reason: Abnormal growth in BPH does not cause loss of bladder muscle. The enlarged prostate compresses the urethra, obstructing urine flow. Bladder muscle may weaken over time from chronic obstruction, but this is secondary, making this incorrect for the primary cause of urinary retention.

Choice C reason: Nerve compression is not a primary BPH mechanism. BPH causes retention by mechanically obstructing the urethra, not by impairing bladder sensation. Sensory changes may occur in neurological conditions, but in BPH, physical compression is the cause, making this incorrect for the client’s retention.

Choice D reason: BPH causes the prostate to enlarge, compressing the urethra and obstructing urine flow, leading to urinary retention. This mechanical blockage is the primary pathophysiological mechanism, causing symptoms like hesitancy or incomplete voiding. This explanation aligns with urological evidence, accurately addressing the client’s condition.

Choice A reason: Insulin reduces serum glucose in diabetes mellitus, not water loss in diabetes insipidus (DI). DI results from vasopressin deficiency, causing excessive urination. Insulin is irrelevant, as DI is a fluid balance disorder, not a glucose metabolism issue, making this response incorrect and misleading for the client.

Choice B reason: Assessing dietary habits and glucose levels pertains to diabetes mellitus, not diabetes insipidus. DI involves water loss due to vasopressin deficiency, not glucose dysregulation. This response misaligns with DI’s pathophysiology, as insulin or glucose monitoring is unnecessary, and vasopressin therapy is the standard treatment.

Choice C reason: Maintaining normal serum glucose is a goal for diabetes mellitus, not diabetes insipidus, which involves water loss from vasopressin deficiency. DI treatment focuses on fluid balance via vasopressin, not glucose control. This response is incorrect, as it conflates DI with an unrelated metabolic condition.

Choice D reason: Diabetes insipidus is managed with vasopressin (ADH) therapy to reduce excessive urination and conserve water, addressing the underlying deficiency. This response accurately explains DI’s treatment, distinguishing it from diabetes mellitus and clarifying that insulin is not needed, aligning with evidence-based endocrinology practice for fluid balance.