Which of the following statements are true for the reagent strip procedure? (Choose ALL that apply)

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More than one answer is correct. Please select all correct answers

	Prolonged immersion may wash out reagents.
	Blot the reagent strip with a paper towel before placing on the tray of the dipstick reader.
	Some tests require specified reading times.
	The expiration date on the bottle does not matter, as long as the controls are acceptable.