Answer: red blood cells
Explanation:
Hemoglobin, iron-containing protein in the blood of many animals—in the red blood cells (erythrocytes) of vertebrates—that transports oxygen to the tissues
"I need to discard unused tablets 6 months after the bottle is opened" means an understanding of this medication.
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What is PRN?</h3>
This is a latin word which is 'pro re nata' and means as the circumstances arises in this scenario.
Discarding unused tablets 6 months after the bottle is opened is encouraged in this type of medication due to it being taken only when needed.
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Sonography.
It’s also another name for ultrasound
