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Things to be added. Plural is addenda (or addendums; both are acceptable English usage, but addenda is preferred.). |
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Shortened to ad lib. According to your pleasure. "The patient is to resume activity ad lib." |
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A.S., left ear. Did you know that the word sinister comes from the term that means "left-handed"? |
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A.U., each ear (often interpreted as "both ears"). |
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Pronounced broo-ee(s). This is an abnormal vascular sound heard on auscultation during a physical exam. Look it up in your dictionary and you will see that nearly all the different types of bruits are French terms. |
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This is a skin lesion that is the color of coffee with milk—a distinctive light brown pigment having a macular form. Pronounced "kahFAY o LAY." |
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A hit or stroke; found in such terms as coup de grace (coo day grawss), coup d'etat (coo day taw), contrecoup (contray-coo—as in a certain kind of brain injury). |
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A blind alley. Usually has reference to the uterine cul-de-sac. |
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In one block. Common term in surgery and pathology where a specimen is removed in one piece. It is pronounced “on block.” But don't get it wrong by spelling it that way! |
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In mass—sometimes refers to one unit, not divided into parts. Pronounced "on mass" or sometimes "on moss." |
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Pronounced zhee-BEAR. An inborn abnormality of liver function. |
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About the only place you will ever hear this is in reference to "fistula in ano," which is an abnormal opening near the anus. |
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In its original position; in its natural or normal place. "The carcinoma in situ has not spread to surrounding tissues." Very common term in pathology reports. |
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As a whole or in the whole, a totality. "The specimen was removed in toto." |
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O.U., each eye/both eyes. Again, you will often hear the abbreviations for these terms, but will rarely, if ever, hear the words themselves. |
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pronounced “po-dranzh.” Literally means "orange peel" and describes the appearance of the skin in certain dermatological conditions. |
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For, through, by. Per diem, by the day. Millimeters per second. Per annum, by the year. |
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Pronounced “rah-fay.” It is included here because of its unusual pronunciation. Literally the word means "seam" and refers to the line of union between various symmetrical physiologic structures. |
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Raynaud phenomenon or disease |
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Pronounced “ray-NO.” This is a vascular disorder characterized by intermittent loss of circulation, usually to the extremities. |
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At once, immediately. You will hear this as "stat." |
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The existing condition. "There was no change in the patient's status quo." |
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Pronounced “ver-cow ro-BAN.” A perivascular space in the brain in which important immunological functions take place. |
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a.c. Before food. "Medication to be taken 40 mg a.c." |
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a.m. In the morning. "He will be seen at 10:00 a.m. in the morning"—is totally redundant. Correct it if you see or hear it. The abbreviation a.m. is common in drug dosages. AM is also an acceptable form. |
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b.i.d. Twice a day or twice daily. |
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d. Day. This is the "d" in most abbreviations. |
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g.t.t. A drop. Often appears in medication lists in reference to eardrops or eyedrops. |
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h. Hour. "Amoxicillin 500 mg q.4h. or q. 4 h." |
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h.s. At bedtime (literally the hour of sleep). "She was to take her Elavil q.h.s." |
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p.o. By mouth. "Lasix 40 p.o. q.d." |
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p.m. Afternoon, or between noon and midnight. |
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p.r.n. As needed. "Tylenol 325 mg q.4 h. p.r.n. pain." |
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Abbreviated q.2 h. This means every 2 hours. |
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t.i.d. Three times a day. |
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Twice a day or twice daily. |
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Day. This is the "d" in most abbreviations. |
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A drop. Often appears in medication lists in reference to eardrops or eyedrops. |
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Hour. "Amoxicillin 500 mg q.4h. or q. 4 h." |
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At bedtime (literally the hour of sleep). "She was to take her Elavil q.h.s." |
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By mouth. "Lasix 40 p.o. q.d." |
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Afternoon, or between noon and midnight. |
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As needed. "Tylenol 325 mg q.4 h. p.r.n. pain." |
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