This is how doctors look at tPA. Which seems to be why whenever a problem is found the first thought is to fix it. This is the reason for trying to increase stroke centers that can diagnose ischemic strokes faster. This leaves out the 15% who are bleeders and also the ones that didn't respond to tPA.
http://oc1dean.blogspot.com/2011/04/most-stroke-patients-not-getting-clot.html
And with that reasoning we got the timeframe increased from 3 to 4.5 hours rather than realizing that maybe we should start looking for new and better interventions.
From Wiktionary:
http://en.wiktionary.org/wiki/if_all_you_have_is_a_hammer,_everything_looks_like_a_nail
EtymologyLikely traditional. In this form, perhaps from Abraham Maslow, The Psychology of Science, 1966, p. 15 and his earlier book Abraham H. Maslow (1962), Toward a Psychology of Being:
I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.
Similar concept by Abraham Kaplan, The Conduct of Inquiry: Methodology for Behavioral Science, 1964, page 28:
I call it the law of the instrument, and it may be formulated as follows: Give a small boy a hammer, and he will find that everything he encounters needs pounding.
[edit] Proverbif all you have is a hammer, everything looks like a nail
1.With limited tools, single-minded people apply them inappropriately or indiscriminately
2.If a person is familiar with a certain, single subject/has with them a certain, single instrument, they may have a confirmation bias to believe that it is the answer to/involved in everything
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