A client's nasogastric tube was inserted 56 centimeters and was taped to the nose. Currently the tape marking is 40 millimeters from the nose. How many centimeters of the nasogastric tube remains in the client?
1. 16
2. 28
3. 42
4. 52
4
Rationale 1: cm = 1 cm/10 mm x 40 mm/1. Multiply the numerators (1 x 40 = 40). Multiply the denominators (10 x 1 = 10). 40/10 = 4 cm. 56 cm – 4 cm = 52 centimeters remains in the client.
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