October 25, 1971

Renal Disease and Prostatic Hypertrophy

Author Affiliations

Galveston, Tex

JAMA. 1971;218(4):596. doi:10.1001/jama.1971.03190170074030

To the Editor.—  Two important basic concepts were not discussed in the question entitled, "Indeterminate Chronic Renal Disease in Patient With Prostatic Hypertrophy" (217: 702, 1971).The first is the value of the phenolsulfonphthalein excretion test in the presence of urinary bladder retention. With incomplete emptying of the bladder, the test may be inaccurate, and is "worthless in evaluating renal function if voluntary voiding of timed urine specimens is used in patients with bladder retention...."1The second and more important concept is the management of postoperative atelectasis. The treatment of choice is not antibiotics but simple removal of the obstruction to adequate ventilation (ie, mucus plugs, restrictive respiration secondary to pain, etc) so that the airless alveoli may be reaerated.2

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