1667:
1277:
is not standard, nor widely known, and is considered obsolete. This deprecation, focused on avoiding incorrect dosing in contexts where handwriting is often present, does not extend to all health-care contexts and institutions (for example, some clinical laboratories' reports adhere to it, whereas
1259:, "μg", in prescribing or chart recording, because of the risk of giving an incorrect dose because of the misreading of poor handwriting. The two alternatives are to abbreviate as "mcg" or to write out "microgram" in full (see also
118:. The prefix "mc" is commonly used in healthcare or when the character "μ" is not available; for example, "mcg" commonly denotes a microgram. The letter "u" is sometimes used instead of "μ" when non-
1529:
1581:
1260:
1416:
Error-Prone
Abbreviations, Symbols, and Dose Designations: μg Intended Meaning: Microgram Misinterpretation: Mistaken as mg Best Practice: Use mcg
1404:
171:
1021:
1366:
1481:
1343:
1189:
1055:
has two different character codes for the letter, with slightly different appearance in some fonts, although most fonts use the same
1638:
1400:
1323:
1531:
ISO 2955-1983: lnformation processing - Representations of SI and other units for use in systems with limited character sets
1515:
ISO 2955-1974: Information processing - Representations of SI and other units for use in systems with limited character sets
1133:
164:
1618:
1571:
1360:
1137:
1393:"ISMP List of Error-Prone Abbreviations, Symbols, and Dose Designations: Abbreviations for Doses/Measurement Units"
1118:
967:
922:
883:
844:
811:
778:
751:
1666:
724:
698:
680:
662:
641:
467:
434:
395:
356:
311:
266:
215:
157:
1141:
81:
1117:, the Greek letter character is preferred, but implementations must recognize the micro sign as well, for
1657:
1392:
64:
1347:
1608:
1114:
20:
1558:
DIN 66030: Darstellungen von
Einheitennamen in Systemen mit beschränktem Schriftzeichenvorrat
1687:
8:
1477:
1634:
1614:
1356:
1318:
1279:
1212:
1546:
1464:
1443:
1181:
1020:
Prefixes adopted before 1960 already existed before SI. The introduction of the
1671:
1286:
1263:). The alternative abbreviation may be ambiguous in rare circumstances in that
1129:
1081:
119:
85:
1681:
1576:
1041:
560:
502:
151:
59:
51:
47:
1342:
1122:
32:
1430:
by
Campbell & Reece, tenth edition. Ch. 6 "A Tour of the Cell". p. 98.
1308:
1252:
1048:
43:
39:
1056:
1502:
1303:
136:
1313:
1298:
1256:
531:
142:
55:
1216:
1185:
132:
1121:. This distinction also occurs in some legacy code pages, notably
1089:
1085:
1052:
190:
89:
1273:
1160:, if lowercase letters are not available), as, for example, in
672:
654:
578:
1610:
Tietz
Textbook of Clinical Chemistry and Molecular Diagnostics
1607:
Burtis, Carl A.; Ashwood, Edward R.; Bruns, David E. (2012),
716:
633:
596:
552:
523:
494:
71:
62:
1255:
institutions, house rules deprecate the standard symbol for
586:
19:
This article is about the SI prefix. For other uses, see
1282:
research, "μg" remains the sole official abbreviation.
604:
1564:
1238:
1655:
1156:
1150:
620:
1289:(HL7) standard, the μ can be replaced by u as well.
1080:) is in the "Latin-1 Supplement" range identical to
1035:
1261:
List of abbreviations used in medical prescriptions
1184:(μC). Similarly, capacitor values according to the
1606:
1084:(since 1987), residing at this code point also in
1438:
1436:
1246:
1679:
145:are typically 10 to 100 micrometers in diameter.
58:). Confirmed in 1960, the prefix comes from the
1635:"Commonly Used UCUM Codes for Healthcare Units"
1602:
1600:
1598:
1572:"Neue Normen für die Informationsverarbeitung"
1550:
1444:"On the extension of the range of SI prefixes"
1433:
1233:
1521:
1507:
1478:Prefixes of the International System of Units
1215:block contains square forms of some Japanese
165:
1595:
1482:International Bureau of Weights and Measures
1344:International Bureau of Weights and Measures
1387:
1385:
1051:(μ). For reasons stemming from its design,
84:prefix which uses a character not from the
1613:(5th ed.), Elsevier Health Sciences,
1285:In medical data exchange according to the
172:
158:
1627:
1382:
1119:compatibility with legacy character sets
1401:Institute for Safe Medication Practices
1324:List of commonly used taxonomic affixes
1680:
1349:The International System of Units (SI)
1113:) is in the Greek range. According to
1192:60062 (since 1952) can be written as
1637:. HL7 Deutschland e.V. 2015-11-21.
1336:
1144:6430 (since 1983) allow the prefix
1136:2955 (since 1974, withdrawn 2001),
1128:In circumstances in which only the
13:
14:
1699:
1560:(in German) (1st ed.). 1980.
1036:Symbol encoding in character sets
1665:
1271:, i.e. 10 g; however the prefix
1176:, or in the common abbreviation
1148:to be substituted by the letter
1641:from the original on 2022-10-06
1584:from the original on 2016-12-14
1407:from the original on 2022-12-24
1372:from the original on 2021-06-04
92:, the symbol is represented by
1496:
1487:
1471:
1457:
1421:
1247:Other abbreviating conventions
1014:
122:characters are not available.
1:
1484:(page visited on 9 May 2016).
1329:
54:denoting a factor of 10 (one
1503:Unicode Technical Report #25
1219:measure and currency units.
1040:The official symbol for the
72:
7:
1292:
1239:
125:
10:
1704:
1537:(2nd ed.). 1983-05-15
63:
18:
1580:(in German). 1981-01-09.
1234:
1005:
955:
871:
799:
739:
648:
572:
488:
422:
344:
254:
194:
189:
186:
183:
16:Metric system unit prefix
1267:could also be read as a
1278:others do not), and in
1140:66030 (since 1980) and
1465:"Metric (SI) Prefixes"
1115:The Unicode Consortium
139:(1–10 μm) in diameter.
21:Micro (disambiguation)
1517:(1st ed.). 1974.
1103:GREEK SMALL LETTER MU
105:or the legacy symbol
103:GREEK SMALL LETTER MU
1403:(ISMP). 2021-02-05.
1204:if the Greek letter
77:), meaning "small".
1493:(Unicode 1.0, 1991)
180:
1208:is not available.
1049:Greek lowercase mu
149:
1319:Square micrometre
1280:physical sciences
1213:CJK Compatibility
1088:(since 1983) and
1033:
1032:
1695:
1670:
1669:
1661:
1650:
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1631:
1625:
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1440:
1431:
1425:
1419:
1418:
1413:
1412:
1389:
1380:
1379:
1378:
1377:
1371:
1355:(8th ed.),
1354:
1340:
1242:
1237:
1236:
1231:
1228:
1225:
1223:
1207:
1203:
1199:
1195:
1179:
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1147:
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181:
174:
167:
160:
148:
143:Eukaryotic cells
117:
114:
111:
109:
104:
101:
98:
96:
75:
68:
67:
1703:
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1698:
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1462:
1458:
1449:
1447:
1442:
1441:
1434:
1426:
1422:
1410:
1408:
1397:Recommendations
1391:
1390:
1383:
1375:
1373:
1369:
1363:
1352:
1341:
1337:
1332:
1295:
1249:
1232:corresponds to
1229:
1226:
1221:
1220:
1205:
1201:
1197:
1193:
1182:microcontroller
1177:
1173:
1169:
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1112:
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1099:
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1079:
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1069:
1066:
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989:
986:
983:
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977:
974:
972:
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947:
944:
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932:
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827:
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783:
764:
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758:
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734:
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705:
703:
567:
565:
541:
538:
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483:
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339:
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318:
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222:
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196:
179:
178:
128:
115:
112:
107:
106:
102:
99:
94:
93:
80:It is the only
24:
17:
12:
11:
5:
1701:
1691:
1690:
1675:
1674:
1652:
1651:
1626:
1620:978-1455759422
1619:
1594:
1563:
1549:
1520:
1506:
1495:
1486:
1470:
1456:
1432:
1420:
1381:
1361:
1334:
1333:
1331:
1328:
1327:
1326:
1321:
1316:
1311:
1306:
1301:
1294:
1291:
1287:Health Level 7
1248:
1245:
1230:SQUARE MAIKURO
1132:is available,
1130:Latin alphabet
1110:
1106:
1092:(since 1985).
1082:ISO/IEC 8859-1
1077:
1073:
1037:
1034:
1031:
1030:
1027:
1026:
1012:
1011:
1010:
1009:
1003:
1002:
970:
965:
962:
958:
957:
954:
925:
920:
917:
913:
912:
886:
881:
878:
874:
873:
870:
847:
842:
839:
835:
834:
814:
809:
806:
802:
801:
798:
781:
776:
773:
769:
768:
754:
749:
746:
742:
741:
738:
727:
722:
719:
713:
712:
709:
701:
696:
693:
687:
686:
683:
678:
675:
669:
668:
665:
660:
657:
651:
650:
647:
644:
639:
636:
630:
629:
626:
623:
618:
615:
611:
610:
607:
602:
599:
593:
592:
589:
584:
581:
575:
574:
571:
563:
558:
555:
549:
548:
545:
534:
529:
526:
520:
519:
505:
500:
497:
491:
490:
487:
470:
465:
462:
458:
457:
437:
432:
429:
425:
424:
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398:
393:
390:
386:
385:
359:
354:
351:
347:
346:
343:
314:
309:
306:
302:
301:
269:
264:
261:
257:
256:
253:
218:
213:
210:
206:
205:
202:
198:
197:
193:
188:
185:
177:
176:
169:
162:
154:
150:
147:
146:
140:
127:
124:
86:Latin alphabet
15:
9:
6:
4:
3:
2:
1700:
1689:
1686:
1685:
1683:
1673:
1668:
1663:
1662:
1659:
1640:
1636:
1630:
1622:
1616:
1612:
1611:
1603:
1601:
1599:
1583:
1579:
1578:
1577:Computerwoche
1573:
1567:
1559:
1553:
1547:
1533:
1532:
1524:
1516:
1510:
1504:
1499:
1490:
1483:
1479:
1474:
1466:
1460:
1445:
1439:
1437:
1429:
1424:
1417:
1406:
1402:
1398:
1394:
1388:
1386:
1368:
1364:
1362:92-822-2213-6
1358:
1351:
1350:
1345:
1339:
1335:
1325:
1322:
1320:
1317:
1315:
1312:
1310:
1307:
1305:
1302:
1300:
1297:
1296:
1290:
1288:
1283:
1281:
1276:
1275:
1270:
1266:
1262:
1258:
1254:
1244:
1241:
1218:
1214:
1209:
1200:) instead of
1191:
1187:
1183:
1158:
1152:
1143:
1139:
1135:
1131:
1126:
1124:
1120:
1116:
1091:
1087:
1083:
1058:
1054:
1050:
1046:
1043:
1023:
1017:
1013:
1007:
1006:
1004:
971:
969:
966:
963:
960:
959:
926:
924:
921:
918:
915:
914:
887:
885:
882:
879:
876:
875:
848:
846:
843:
840:
837:
836:
815:
813:
810:
807:
804:
803:
782:
780:
777:
774:
771:
770:
755:
753:
750:
747:
744:
743:
728:
726:
723:
720:
718:
715:
714:
710:
702:
700:
697:
694:
692:
689:
688:
684:
682:
679:
676:
674:
671:
670:
666:
664:
661:
658:
656:
653:
652:
645:
643:
640:
637:
635:
632:
631:
627:
624:
622:
619:
616:
613:
612:
608:
606:
603:
600:
598:
595:
594:
590:
588:
585:
582:
580:
577:
576:
564:
562:
559:
556:
554:
551:
550:
546:
535:
533:
530:
527:
525:
522:
521:
506:
504:
501:
498:
496:
493:
492:
471:
469:
466:
463:
460:
459:
438:
436:
433:
430:
427:
426:
399:
397:
394:
391:
388:
387:
360:
358:
355:
352:
349:
348:
315:
313:
310:
307:
304:
303:
270:
268:
265:
262:
259:
258:
219:
217:
214:
211:
208:
207:
203:
200:
199:
192:
182:
175:
170:
168:
163:
161:
156:
155:
153:
144:
141:
138:
134:
130:
129:
123:
121:
91:
87:
83:
78:
76:
74:
66:
61:
57:
53:
52:metric system
49:
45:
41:
37:
34:
30:
29:
22:
1643:. Retrieved
1629:
1609:
1586:. Retrieved
1575:
1566:
1557:
1552:
1539:. Retrieved
1530:
1523:
1514:
1509:
1498:
1489:
1473:
1459:
1448:. Retrieved
1446:. 2022-11-18
1427:
1423:
1415:
1409:. Retrieved
1396:
1374:, retrieved
1348:
1338:
1284:
1272:
1268:
1264:
1250:
1210:
1127:
1123:Windows-1253
1044:
1039:
1024:was in 1873.
1016:
690:
135:are 1 to 10
79:
70:
35:
33:Greek letter
27:
26:
25:
1688:SI prefixes
1528:"Table 2".
1309:Microsecond
1253:health care
1188:defined in
152:SI prefixes
48:unit prefix
1645:2022-12-24
1588:2016-12-14
1541:2016-12-14
1450:2023-02-05
1411:2022-12-24
1376:2021-12-16
1330:References
1304:Microscope
1070:MICRO SIGN
1022:CGS system
137:micrometer
116:MICRO SIGN
1314:Microwave
1299:Microgram
1269:micrigram
1257:microgram
1154:(or even
1042:SI prefix
56:millionth
1682:Category
1639:Archived
1582:Archived
1405:Archived
1367:archived
1346:(2006),
1293:See also
1251:In some
1227:㍃
1217:katakana
1186:RKM code
195:Adoption
187:Base 10
133:bacteria
131:Typical
126:Examples
1672:Physics
1467:. NIST.
1428:Biology
1240:maikuro
1100:μ
1090:ECMA-94
1086:DEC MCS
1053:Unicode
204:Symbol
191:Decimal
100:μ
90:Unicode
50:in the
46:) is a
1658:Portal
1617:
1359:
1224:
1222:U+3343
1097:
1095:U+03BC
1067:µ
1064:
1062:U+00B5
961:quecto
685:0.001
209:quetta
184:Prefix
113:µ
110:
108:U+00B5
97:
95:U+03BC
73:mikrós
65:μικρός
44:italic
42:, non-
1535:(PDF)
1370:(PDF)
1353:(PDF)
1274:micri
1168:, or
1057:glyph
1047:is a
1045:micro
1008:Notes
973:0.000
956:2022
928:0.000
916:ronto
889:0.000
877:yocto
872:1991
850:0.000
838:zepto
817:0.000
800:1964
784:0.000
772:femto
757:0.000
740:1960
730:0.000
711:1873
704:0.000
691:micro
673:milli
667:0.01
655:centi
649:1795
579:hecto
573:1795
547:1873
489:1960
423:1975
350:zetta
345:1991
305:yotta
260:ronna
255:2022
120:Latin
88:. In
60:Greek
28:Micro
1615:ISBN
1357:ISBN
1235:マイクロ
1211:The
1196:(or
1180:for
1172:for
1164:for
1078:0181
805:atto
745:pico
717:nano
634:deci
597:deca
591:100
553:kilo
524:mega
495:giga
461:tera
428:peta
201:Name
1265:mcg
1202:4μ7
1198:4U7
1194:4u7
1190:IEC
1138:DIN
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