If you need to know which are the AST reference ranges or you require more information about the role of AST in the blood, you can visit normal AST level in the blood
An increase in the AST (Aspartate aminotransferase) level, formerly named glutamate oxaloacetate transaminase (GOT), may indicate problems related to the liver. It can be consequence of fatty liver or alcoholic liver disease patterns or it may be a sign of chronic liver diseases like cirrhosis or hepatitis (inflammation of the liver).
The AST is useful to monitor muscle and heart damage. It can also be a marker to predict the prognosis of a heart attack.
AST Hypertransaminasemia or a high AST level in the blood mean:
The AST blood level is higher than normal but if you do not have any symptom it is usually not a matter of concern.
It can be a consequence of obesity, alcohol intake or because you are taking drugs to treat any other disease. You should follow a healthy lifestyle and this way it is probable that the AST will be in the normal range in a few months.
Talk to your doctor about the possible interaction of the drugs you are currently taking or in case you are suffering any symptom.
A moderate AST elevation is not a serious concern, but the possible causes should be researched because it may be a first sign of liver problems.
Alcohol intake is one of the main factors than can raise AST. If this is your case, you should restrict your alcohol consumption.
AST hypertransaminasemia is also frequently due to fatty liver (hepatic steatosis). Fatty liver is an accumulation of fat in the liver. It is a benign disease but if it is not treated properly, it can lead to more serious complications.
You should visit your doctor and he will tell you the following steps to determine the causes.
A marked AST elevation suggests a liver disease. It may be a sign of chronic hepatitis (inflammation of the liver).
It may also be due to not liver diseases, for example:
You must visit your doctor as soon as possible. He will tell you the tests and procedures you should follow to diagnose the origin of this elevation.
Your AST level in the blood is so high that there is a real probability that your liver is damaged. It is highly likely that you are suffering from acute hepatitis or liver ischemia.
A drug-induced liver injury can show extreme high AST values, even 100 times above the reference level.
You must find urgent medical attention to avoid irreversible damage to your liver.
There are some health circumstances or drugs than can raise your AST level in the blood:
There are many medical conditions why the AST level in the blood can be higher than normal:
If your AST level in the blood is slightly high, you should keep in mind the following tips:
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The following values are considered to be above the normal range:
IMPORTANT: These levels are expressed in U/L. They are an example of a healthy man of about 45 years old with no known disease and not taking any medication. The ranges can be different depending on the laboratory or on your personal circumstances.
AST Aspartate Aminotransferase | |||||||
|---|---|---|---|---|---|---|---|
| Mild AST hypertransaminasemia | |||||||
| 51 U/L | 52 U/L | 53 U/L | 54 U/L | 55 U/L | 56 U/L | 57 U/L | 58 U/L |
| 59 U/L | 60 U/L | 61 U/L | 62 U/L | 63 U/L | 64 U/L | 65 U/L | 66 U/L |
| 67 U/L | 68 U/L | 69 U/L | 70 U/L | 71 U/L | 72 U/L | 73 U/L | 74 U/L |
| 75 U/L | 76 U/L | 77 U/L | 78 U/L | 79 U/L | 80 U/L | 81 U/L | 82 U/L |
| 83 U/L | 84 U/L | 85 U/L | 86 U/L | 87 U/L | 88 U/L | 89 U/L | 90 U/L |
| 91 U/L | 92 U/L | 93 U/L | 94 U/L | 95 U/L | 96 U/L | 97 U/L | 98 U/L |
| 99 U/L | 100 U/L | 101 U/L | 102 U/L | 103 U/L | 104 U/L | 105 U/L | 106 U/L |
| 107 U/L | 108 U/L | 109 U/L | 110 U/L | 111 U/L | 112 U/L | 113 U/L | 114 U/L |
| 115 U/L | 116 U/L | 117 U/L | 118 U/L | 119 U/L | 120 U/L | 121 U/L | 122 U/L |
| 123 U/L | 124 U/L | 125 U/L | 126 U/L | 127 U/L | 128 U/L | 129 U/L | 130 U/L |
| 131 U/L | 132 U/L | 133 U/L | 134 U/L | 135 U/L | 136 U/L | 137 U/L | 138 U/L |
| 139 U/L | 140 U/L | 141 U/L | 142 U/L | 143 U/L | 144 U/L | 145 U/L | 146 U/L |
| 147 U/L | 148 U/L | 149 U/L | 150 U/L | ||||
| Moderate AST hypertransaminasemia | |||||||
| 151 U/L | 152 U/L | 153 U/L | 154 U/L | 155 U/L | 156 U/L | 157 U/L | 158 U/L |
| 159 U/L | 160 U/L | 161 U/L | 162 U/L | 163 U/L | 164 U/L | 165 U/L | 166 U/L |
| 167 U/L | 168 U/L | 169 U/L | 170 U/L | 171 U/L | 172 U/L | 173 U/L | 174 U/L |
| 175 U/L | 176 U/L | 177 U/L | 178 U/L | 179 U/L | 180 U/L | 181 U/L | 182 U/L |
| 183 U/L | 184 U/L | 185 U/L | 186 U/L | 187 U/L | 188 U/L | 189 U/L | 190 U/L |
| 191 U/L | 192 U/L | 193 U/L | 194 U/L | 195 U/L | 196 U/L | 197 U/L | 198 U/L |
| 199 U/L | 200 U/L | 201 U/L | 202 U/L | 203 U/L | 204 U/L | 205 U/L | 206 U/L |
| 207 U/L | 208 U/L | 209 U/L | 210 U/L | 211 U/L | 212 U/L | 213 U/L | 214 U/L |
| 215 U/L | 216 U/L | 217 U/L | 218 U/L | 219 U/L | 220 U/L | 221 U/L | 222 U/L |
| 223 U/L | 224 U/L | 225 U/L | 226 U/L | 227 U/L | 228 U/L | 229 U/L | 230 U/L |
| 231 U/L | 232 U/L | 233 U/L | 234 U/L | 235 U/L | 236 U/L | 237 U/L | 238 U/L |
| 239 U/L | 240 U/L | 241 U/L | 242 U/L | 243 U/L | 244 U/L | 245 U/L | 246 U/L |
| 247 U/L | 248 U/L | 249 U/L | 250 U/L | ||||
| Marked AST hypertransaminasemia | |||||||
| 251 U/L | 252 U/L | 253 U/L | 254 U/L | 255 U/L | 256 U/L | 257 U/L | 258 U/L |
| 259 U/L | 260 U/L | 261 U/L | 262 U/L | 263 U/L | 264 U/L | 265 U/L | 266 U/L |
| 267 U/L | 268 U/L | 269 U/L | 270 U/L | 271 U/L | 272 U/L | 273 U/L | 274 U/L |
| 275 U/L | 276 U/L | 277 U/L | 278 U/L | 279 U/L | 280 U/L | 281 U/L | 282 U/L |
| 283 U/L | 284 U/L | 285 U/L | 286 U/L | 287 U/L | 288 U/L | 289 U/L | 290 U/L |
| 291 U/L | 292 U/L | 293 U/L | 294 U/L | 295 U/L | 296 U/L | 297 U/L | 298 U/L |
| 299 U/L | 300 U/L | 301 U/L | 302 U/L | 303 U/L | 304 U/L | 305 U/L | 306 U/L |
| 307 U/L | 308 U/L | 309 U/L | 310 U/L | 311 U/L | 312 U/L | 313 U/L | 314 U/L |
| 315 U/L | 316 U/L | 317 U/L | 318 U/L | 319 U/L | 320 U/L | 321 U/L | 322 U/L |
| 323 U/L | 324 U/L | 325 U/L | 326 U/L | 327 U/L | 328 U/L | 329 U/L | 330 U/L |
| 331 U/L | 332 U/L | 333 U/L | 334 U/L | 335 U/L | 336 U/L | 337 U/L | 338 U/L |
| 339 U/L | 340 U/L | 341 U/L | 342 U/L | 343 U/L | 344 U/L | 345 U/L | 346 U/L |
| 347 U/L | 348 U/L | 349 U/L | 350 U/L | 351 U/L | 352 U/L | 353 U/L | 354 U/L |
| 355 U/L | 356 U/L | 357 U/L | 358 U/L | 359 U/L | 360 U/L | 361 U/L | 362 U/L |
| 363 U/L | 364 U/L | 365 U/L | 366 U/L | 367 U/L | 368 U/L | 369 U/L | 370 U/L |
| 371 U/L | 372 U/L | 373 U/L | 374 U/L | 375 U/L | 376 U/L | 377 U/L | 378 U/L |
| 379 U/L | 380 U/L | 381 U/L | 382 U/L | 383 U/L | 384 U/L | 385 U/L | 386 U/L |
| 387 U/L | 388 U/L | 389 U/L | 390 U/L | 391 U/L | 392 U/L | 393 U/L | 394 U/L |
| 395 U/L | 396 U/L | 397 U/L | 398 U/L | 399 U/L | 400 U/L | 401 U/L | 402 U/L |
| 403 U/L | 404 U/L | 405 U/L | 406 U/L | 407 U/L | 408 U/L | 409 U/L | 410 U/L |
| 411 U/L | 412 U/L | 413 U/L | 414 U/L | 415 U/L | 416 U/L | 417 U/L | 418 U/L |
| 419 U/L | 420 U/L | 421 U/L | 422 U/L | 423 U/L | 424 U/L | 425 U/L | 426 U/L |
| 427 U/L | 428 U/L | 429 U/L | 430 U/L | 431 U/L | 432 U/L | 433 U/L | 434 U/L |
| 435 U/L | 436 U/L | 437 U/L | 438 U/L | 439 U/L | 440 U/L | 441 U/L | 442 U/L |
| 443 U/L | 444 U/L | 445 U/L | 446 U/L | 447 U/L | 448 U/L | 449 U/L | 450 U/L |
| 451 U/L | 452 U/L | 453 U/L | 454 U/L | 455 U/L | 456 U/L | 457 U/L | 458 U/L |
| 459 U/L | 460 U/L | 461 U/L | 462 U/L | 463 U/L | 464 U/L | 465 U/L | 466 U/L |
| 467 U/L | 468 U/L | 469 U/L | 470 U/L | 471 U/L | 472 U/L | 473 U/L | 474 U/L |
| 475 U/L | 476 U/L | 477 U/L | 478 U/L | 479 U/L | 480 U/L | 481 U/L | 482 U/L |
| 483 U/L | 484 U/L | 485 U/L | 486 U/L | 487 U/L | 488 U/L | 489 U/L | 490 U/L |
| 491 U/L | 492 U/L | 493 U/L | 494 U/L | 495 U/L | 496 U/L | 497 U/L | 498 U/L |
| 499 U/L | 500 U/L | ||||||
| Severe AST hypertransaminasemia | |||||||
| 501 U/L | 502 U/L | 503 U/L | 504 U/L | 505 U/L | 506 U/L | 507 U/L | 508 U/L |
| 509 U/L | 510 U/L | 511 U/L | 512 U/L | 513 U/L | 514 U/L | 515 U/L | 516 U/L |
| 517 U/L | 518 U/L | 519 U/L | 520 U/L | 521 U/L | 522 U/L | 523 U/L | 524 U/L |
| 525 U/L | 526 U/L | 527 U/L | 528 U/L | 529 U/L | 530 U/L | 531 U/L | 532 U/L |
| 533 U/L | 534 U/L | 535 U/L | 536 U/L | 537 U/L | 538 U/L | 539 U/L | 540 U/L |
| 541 U/L | 542 U/L | 543 U/L | 544 U/L | 545 U/L | 546 U/L | 547 U/L | 548 U/L |
| 549 U/L | 550 U/L | 551 U/L | 552 U/L | 553 U/L | 554 U/L | 555 U/L | 556 U/L |
| 557 U/L | 558 U/L | 559 U/L | 560 U/L | 561 U/L | 562 U/L | 563 U/L | 564 U/L |
| 565 U/L | 566 U/L | 567 U/L | 568 U/L | 569 U/L | 570 U/L | 571 U/L | 572 U/L |
| 573 U/L | 574 U/L | 575 U/L | 576 U/L | 577 U/L | 578 U/L | 579 U/L | 580 U/L |
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