The nurse is teaching a client about coughing and deep-breathing techniques to prevent postoperative complications. which statement is most appropriate for the nurse to make to the client at this time as it relates to these techniques?
1. "use of an incentive spirometer will prevent pneumonia."
2. "close monitoring of your oxygen saturation will detect hypoxemia."
3. "administration of intravenous fluids will prevent or treat fluid imbalance."
4. "early ambulation and administration of blood thinners will prevent pulmonary embolism."

Poliovirus is an rna virus of the picornavirus group, which uses its rna as mrna. at its 5' end, the rna genome has a viral protein (vpg) instead of a cap. this is followed by anontranslated leader sequence, and then a single long protein-coding region (~7000 nucleotides), followed by a poly-a tail. observations were made that used radioactive amino acid analogues. short period use of the radioactive amino acids result in labeling of only very long proteins, while longer periods of labeling result in several different short polypeptides. what conclusion is most consistent with the results of the radioactive labeling experiment? a) host cell ribosomes only translate the viral code into short polypeptides. b) the rna is only translated into a single long polypeptide, which is then cleaved into shorter ones. c) the rna is translated into short polypeptides, which are subsequently assembled into large ones. d) the large radioactive polypeptides are coded by the host, whereas the short ones are coded for by the virus.