What should the nurse do to verify nasogastric (NG)tube placement? (Select all that apply.)

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Verify tube placement: (Check agency policy for preferred methods for checking tube placement.)Ask patient to talk.If patient is unable to talk,the NG tube may have passed through vocal cords.Inspect posterior pharynx for presence of coiled tube.The tube is pliable and will coil up behind the pharynx instead of advancing into the esophagus.Aspirate gently back on syringe to obtain gastric contents,observing color.Gastric contents are usually cloudy and green but sometimes are off-white,tan,bloody,or brown.Aspiration of contents provides means to measure fluid pH and thus determine tube tip placement in GI tract.

What Should the Nurse Do to Verify Nasogastric (NG)tube Placement