Pain: The Fifth Vital Sign

Aug 31 2005 - 2:28pm

A medical visit includes essential measurements, height, weight and the so-called "vital signs," blood pressure, pulse, respiratory rate and temperature, which give an indication of health status. Lately, many medical practitioners have added another indicator, pain assessment, what some call the "fifth vital sign."

Since pain cannot be measured objectively, the patient is asked to rate any pain at the time of the visit on a scale from zero to 10. Children use a scale based on faces from a smile for no pain to a crying face to show how they feel. If blood pressure were never measured, physicians would be less able to identify those who need treatment. Similarly, with pain, if no one assesses it, many with pain will go untreated.

Pain can arise from injury to body structures through trauma, such as a fracture or burn or as a result of surgery or as a complication of disease, such as cancer, HIV, diabetes nerve damage, infection, arthritis and toxins. The causes of some pain syndromes are not well understood as in the case of complex regional pain syndrome, formerly called causalgia or reflex sympathetic dystrophy.

According to a 1999 Gallup survey, nine in 10 Americans regularly suffer from pain. Untreated, pain can lead to other medical complications depending on the cause of the pain. Pain causes long-term disability, short-term job absences and contributes to depression. Pain is often under treated for a variety of reasons. People with pain may not report it and doctors may not diagnose it or feel comfortable with treatment options.

With all the advertising for over-the-counter pain medications, it's hard to understand why only one in four people are receiving adequate treatment for their pain, according to the American Pain Foundation. Some people do not use medication effectively, either under dosing or using too long a dosing interval. Misunderstandings about medication safety or addiction potential also might contribute in addition to worries about drug interactions or side effects.

Physicians may not provide adequate treatment either. There are often misperceptions about side effects, addiction potential and malpractice and legal risks from the use of prescription pain medications. Many may not feel adequately trained to manage pain. All these issues can lead to inadequate assessment or under treatment of pain.

Pain treatments include medications and nonmedical therapies. Most people can use acetaminophen (Tylenol and others) safely as long as they do not drink alcohol heavily. One problem with acetaminophen is that many over-the-counter medications combine it with decongestants, antihistamines and so on. Some prescription pain medications also include acetaminophen. If one does not read the label, it is possible to exceed the maximum adult dose of 4,000 mg a day.

Various nonsteroidal anti-inflammatories are available with and without prescription. The most familiar over-the-counter varieties are ibuprofen (Motrin, Advil and others), naproxen (Aleve) and ketoprofen (Orudis). In addition to pain relief, these drugs also reduce inflammation that is often an additional contributor to pain. These, too, are often found in combination with cold medications and can be taken in greater than recommended doses if not careful.



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"It (addiction) happens only in people genetically predisposed to addiction. " I'm a surgeon. That is the stupidest statement I have seen in ages.
But why would Penn State University release it if it was not properly studied?
Well, the study is 8 years old (see the date). We know more about addiction now, and genetics does play a role for sure - the statement is by no means "the stupidest", but now we know genes is not the only factor that lead to addiction - but it is indeed one contributor.