Answer:
Option D, less than 100 mL.
Explanation:
In general the normal post-void residual urine in the bladder is less than 50 ml. But in case of old patients (of age higher than 65 years) it is acceptable upto the volume of 100 ml. But in younger people it must be less than 50 ml or else it is abnormal.
This leads to the problem of urinary retention which causes frequent urination or a feeling of incomplete emptying of bladder accompanied sometimes by the urge of overflow incontinence
Thus, if retention is upto 100 ml in old people it is normal .
Option D is correct partially
Accurate measurement reduces parallax errors. one step that can be taken is ensuring that you measure from zero. This step applies to using instruments such as rulers or other devices for measuring length. Another step is to ensure that the instrument being used is calibrated. The next step is to use the appropriate device for the type of measurement.
Sturdeons, Paddlefishes, Gars, Bowfines, Mooneye, Freshwater Eels, Herrings, Carps and Minnows, North American Catfishes, Smelts, Trouts and Salmons, Cods, Topminnows, Sticklebacks, Sculpins, Temperate Basses, Pikes and Mudminnows, Sunfishes, Perches and Darters, Drums and Croakers.
EXAMPLES Dunkleosteus, Sea Lamprey, Ohio Lamprey, Northern Lamprey, Shortnose Sturgeon, Atlantic Sturgeon, PaddleFish, American Book Lamprey, Mountain Brook Lamprey, Lake Sturgeon, Spotted Gar, Longnose Gar, Bowfin, Mooneye, American Eel, Blueback Herring, Alewife, Gizzard Shad, Hickory Shad, American Shed, Bluntnose Minnow, Central Stoneroller, Cutlips Minnow, Emerald Shiner, Rainbow Smelt, Pink Salmon, Stonecat,