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您现在的位置: 医学全在线 > 医学英语 > 临床英语 > 临床英语 > 正文:History of Present Illness (HPI)
    

History of Present Illness (HPI)

  • The content of subsequent questions will depend both on what you uncover and your knowledge base/understanding of patients and their illnesses. If, for example, the patient's initial complaint was chest pain you might have uncovered the following by using the above questions:

    The pain began 1 month ago and only occurs with activity. It rapidly goes away with rest. When it does occur, it is a steady pressure focused on the center of the chest that is roughly a 5 (on a scale of 1 to 10). Over the last week, it has happened 6 times while in the first week it happened only once. The patient has never experienced anything like this previously and has not mentioned this problem to anyone else prior to meeting with you. As yet, they have employed no specific therapy.

    This is quite a lot of information. However, if you were not aware that coronary-based ischemia causes a symptom complex identical to what the patient is describing, you would have no idea what further questions to ask. That's OK. With additional experience, exposure, and knowledge you will learn the appropriate settings for particular lines of questioning. When clinicians obtain a history, they are continually generating differential diagnoses in their minds, allowing the patient's answers to direct the logical use of additional questions. With each step, the list of probable diagnoses is pared down until a few likely choices are left from what was once a long list of possibilities. Perhaps an easy way to understand this would be to think of the patient problem as a Windows-Based computer program. The patient tells you a symptom. You click on this symptom and a list of general questions appears. The patient then responds to these questions. You click on these responses and... blank screen. No problem. As yet, you do not have the clinical knowledge base to know what questions to ask next. With time and experience you will be able to click on the patient's response and generate a list of additional appropriate questions. In the previous patient with chest pain, you will learn that this patient's story is very consistent with significant, symptomatic coronary artery disease. As such, you would ask follow-up questions that help to define a cardiac basis for this complaint (e.g. history of past myocardial infarctions, risk factors for coronary disease, etc.). You'd also be aware that other disease states (e.g. emphysema) might cause similar symptoms and would therefore ask questions that could lend support to these possible diagnoses (e.g. history of smoking or wheezing). At the completion of the HPI, you should have a pretty good idea as to the likely cause of a patient's problem. You may then focus your exam on the search for physical signs that would lend support to your working diagnosis and help direct you in the rational use of adjuvant testing. www.med126.com

    Recognizing symptoms/responses that demand an urgent assessment (e.g. crushing chest pain) vs. those that can be handled in a more leisurely fashion (e.g. fatigue) will come with time and experience. All patient complaints merit careful consideration. Some, however, require time to play out, allowing them to either become "a something" (a recognizable clinical entity) or "a nothing," and simply fade away. Clinicians are constantly on the look-out for markers of underlying illness, historical points which might increase their suspicion for the existence of an underlying disease process. For example, a patient who does not usually seek medical attention yet presents with a new, specific complaint merits a particularly careful evaluation. More often, however, the challenge lies in having the discipline to continually re-consider the diagnostic possibilities in a patient with multiple, chronic complaints who presents with a variation of his/her "usual" symptom complex.

    You will undoubtedly forget to ask certain questions, requiring a return visit to the patient's bedside to ask, "Just one more thing." Don't worry, this happens to everyone! You'll get more efficient with practice.

    Dealing With Your Own Discomfort:
    Many of you will feel uncomfortable with the patient interview. This process is, by its very nature, highly intrusive. The patient has been stripped, both literally and figuratively, of the layers that protect them from the physical and psychological probes of the outside world. Furthermore, in order to be successful, you must ask in-depth, intimate questions of a person with whom you essentially have no relationship. This is completely at odds with your normal day to day interactions. There is no way to proceed without asking questions, peering into the life of an otherwise complete stranger. This can, however, be done in a way that maintains respect for the patient's dignity and privacy. In fact, at this stage of your careers, you perhaps have an advantage over more experienced providers as you are hyper-aware that this is not a natural environment. Many physicians become immune to the sense that they are violating a patient's personal space and can thoughtlessly over step boundaries. Avoiding this is not an easy task. Listen and respond appropriately to the internal warnings that help to sculpt your normal interactions.

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