K. L is a 26-year-old man with asthma. His symptoms have been well controlled with inhaled fluticasone and salmeterol. This morning he went for a short run and is now in the emergency department with an acute asthma attack that was not responsive to either of his inhalers. He is wheezing audibly, RR is 28, and O2 sats are 86% on room air.

a. What is the cause of wheezing during an asthma attack?
b. Why were the inhalers ineffective in aborting the attack?
c. Which medication should K. L. be prescribed to abort asthma attacks?
d. How should K. L. be reminded to use his inhalers on a daily basis? What are the major teaching points?

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above

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.

What is a possible consequence of abusing intravenous drug such as heroin? a-hiv transmission b-alcohol poisoning c-improving appetite d-lung cancer