Leukocyte alkaline phosphatase: Difference between revisions
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{{SI}} | {{SI}} | ||
{{CMG}}; {{VR}} | {{CMG}}; {{AE}} {{VR}} | ||
{{SK}} LAP | {{SK}} LAP | ||
== Overview == | == Overview == | ||
Leukocyte alkaline phosphatase is an [[enzyme]] found within [[white blood cells]]. The blood level of leukocyte alkaline phosphatase is measured in order to help in the diagnosis of certain conditions. Higher levels of the enzyme are seen in [[polycythemia vera]], [[essential thrombocytosis]], [[myelofibrosis|primary myelofibrosis]] and [[leukemoid reaction]]. Lower levels are found in [[chronic myelogenous leukemia]], [[aplastic anemia]], [[paroxysmal nocturnal hemoglobinuria]] and [[acute myelogenous leukemia]]. | Leukocyte alkaline phosphatase is an [[enzyme]] found within [[white blood cells]]. The blood level of leukocyte alkaline phosphatase is measured in order to help in the diagnosis of certain conditions. Higher levels of the enzyme are seen in [[polycythemia vera]], [[essential thrombocytosis]], [[myelofibrosis|primary myelofibrosis]] and [[leukemoid reaction]]. Lower levels are found in [[chronic myelogenous leukemia]], [[aplastic anemia]], [[paroxysmal nocturnal hemoglobinuria]] and [[acute myelogenous leukemia]]. | ||
==Causes of Increased Leukocyte alkaline phosphatase== | ==Causes of Increased Leukocyte alkaline phosphatase== | ||
===Life Threatening Causes=== | ===Life Threatening Causes=== | ||
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. | |||
*[[Appendicitis]] | *[[Appendicitis]] | ||
*[[Blood transfusion]] | *[[Blood transfusion]] | ||
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==Causes of Decreased Leukocyte Alkaline Phosphatase== | ==Causes of Decreased Leukocyte Alkaline Phosphatase== | ||
===Life Threatening Causes=== | ===Life Threatening Causes=== | ||
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. | |||
*[[Burns]] | *[[Burns]] | ||
*[[Epinephrine]] | *[[Epinephrine]] | ||
*[[Respiratory alkalosis]] | *[[Respiratory alkalosis]] | ||
*[[Salicylate]] | *[[Salicylate|Salicylate toxicity]] | ||
*[[Terbutaline]] | *[[Terbutaline|Terbutaline toxicity]] | ||
===Common Causes=== | ===Common Causes=== | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Drug Side Effect''' | | '''Drug Side Effect''' | ||
|bgcolor="Beige"| [[Acetazolamide]], [[albuterol]], [[dopamine]], [[epinephrine]], [[glucagon]], [[granulocyte colony-stimulating factor]], [[insulin]], [[salicylate]], [[corticosteroids | systemic corticosteroids]], [[terbutaline]] | |bgcolor="Beige"| [[Acetazolamide]], [[albuterol]], [[dopamine]], [[epinephrine]], [[glucagon]], [[granulocyte colony-stimulating factor]], [[insulin]], [[salicylate]], [[corticosteroids|systemic corticosteroids]], [[terbutaline]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Genetic''' | | '''Genetic''' | ||
|bgcolor="Beige"| [[Abetalipoproteinemia]], [[beta thalassemia]], [[cystic fibrosis]], [[hyperphosphatasia|hereditary hyperphosphatasia]], [[X-linked_hypophosphatemia | hereditary hypophosphatemia]], [[Autosomal dominant hypophosphatemic rickets | hereditary hypophosphatemic rickets]], [[Vitamin D resistant rickets|hereditary vitamin D-resistant rickets]], [[Monoclonal gammopathy of undetermined significance | IgG monoclonal gammopathy]], [[malignant histiocytosis]], [[hypereosinophilic syndrome|myeloproliferative variants of hypereosinophilic | |bgcolor="Beige"| [[Abetalipoproteinemia]], [[beta thalassemia]], [[cystic fibrosis]], [[hyperphosphatasia|hereditary hyperphosphatasia]], [[X-linked_hypophosphatemia | hereditary hypophosphatemia]], [[Autosomal dominant hypophosphatemic rickets | hereditary hypophosphatemic rickets]], [[Vitamin D resistant rickets|hereditary vitamin D-resistant rickets]], [[Monoclonal gammopathy of undetermined significance | IgG monoclonal gammopathy]], [[malignant histiocytosis]], [[hypereosinophilic syndrome|myeloproliferative variants of hypereosinophilic syndrome]], [[paroxysmal nocturnal hemoglobinuria]], [[Myelofibrosis | primary myelofibrosis]], [[dysplasia|trilineage dysplasia]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Hematologic''' | | '''Hematologic''' | ||
|bgcolor="Beige"| [[Acute myelogenous leukemia]], [[aplastic anemia]], [[Chronic myelogenous leukemia | atypical chronic myeloid leukemia]], [[beta thalassemia]], [[blood transfusion]], [[chronic eosinophilic leukemia]], [[chronic myelogenous leukemia]], [[chronic myelomonocytic leukemia]], [[erythroblastosis fetalis]], [[essential thrombocythemia]], [[fanconi syndrome]], [[hemolysis]], [[idiopathic hypereosinophilic syndrome]], [[idiopathic thrombocytopenic purpura]], [[iron deficiency anemia]], [[hypereosinophilic syndrome|myeloproliferative variants of hypereosinophilic | |bgcolor="Beige"| [[Acute myelogenous leukemia]], [[aplastic anemia]], [[Chronic myelogenous leukemia |atypical chronic myeloid leukemia]], [[beta thalassemia]], [[blood transfusion]], [[chronic eosinophilic leukemia]], [[chronic myelogenous leukemia]], [[chronic myelomonocytic leukemia]], [[erythroblastosis fetalis]], [[essential thrombocythemia]], [[fanconi syndrome]], [[hemolysis]], [[idiopathic hypereosinophilic syndrome]], [[idiopathic thrombocytopenic purpura]], [[iron deficiency anemia]], [[hypereosinophilic syndrome|myeloproliferative variants of hypereosinophilic syndrome]], [[non-Hodgkin lymphoma]], [[paroxysmal nocturnal hemoglobinuria]], [[pernicious anemia]], [[Myelofibrosis | primary myelofibrosis]], [[Thrombocytopenia | refractory thrombocytopenia]], [[sickle cell disease]], [[sideroachrestic anemia]], [[sideroblastic anemia]], [[thrombocytopenic purpura]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Iatrogenic''' | | '''Iatrogenic''' | ||
|bgcolor="Beige"| [[Bariatric surgery]], [[blood transfusion ]], [[gastrectomy]], [[vagotomy]] | |bgcolor="Beige"| [[Bariatric surgery]], [[blood transfusion]], [[gastrectomy]], [[vagotomy]] | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Infectious Disease''' | | '''Infectious Disease''' | ||
|bgcolor="Beige"| [[Diphyllobothrium | fish tapeworm]], [[giardia lamblia]], [[Histoplasmosis | histoplasmosis endocarditis]], [[HIV]], [[hookworm]], [[infectious mononucleosis]], [[Tuberculosis | intestinal tuberculosis]], [[roundworm]], [[traveler's diarrhea]] | |bgcolor="Beige"| [[Diphyllobothrium |fish tapeworm]], [[giardia lamblia]], [[Histoplasmosis |histoplasmosis endocarditis]], [[HIV]], [[hookworm]], [[infectious mononucleosis]], [[Tuberculosis | intestinal tuberculosis]], [[roundworm]], [[traveler's diarrhea]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Musculoskeletal/Orthopedic''' | | '''Musculoskeletal/Orthopedic''' | ||
|bgcolor="Beige"| [[Osteoarthritis | degenerative arthritis]], [[Autosomal dominant hypophosphatemic rickets | hereditary hypophosphatemic rickets]], [[oncogenic osteomalacia]], [[osteoarthritis]], [[osteomalacia]] | |bgcolor="Beige"| [[Osteoarthritis | degenerative arthritis]], [[Autosomal dominant hypophosphatemic rickets |hereditary hypophosphatemic rickets]], [[oncogenic osteomalacia]], [[osteoarthritis]], [[osteomalacia]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Neurologic''' | | '''Neurologic''' | ||
|bgcolor="Beige"| [[Dementia]], [[ganglioneuroma | thoracic ganglioneuroma]] | |bgcolor="Beige"| [[Dementia]], [[ganglioneuroma |thoracic ganglioneuroma]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Nutritional/Metabolic''' | | '''Nutritional/Metabolic''' | ||
|bgcolor="Beige"| [[Bacterial overgrowth]], [[bariatric surgery]], [[blind loop syndrome]], [[celiac disease]], [[chronic pancreatitis]], [[chronic renal failure]], [[Crohn's disease]], [[gastrectomy]], [[X-linked_hypophosphatemia | hereditary hypophosphatemia]], [[vitamin D resistant rickets|hereditary vitamin D-resistant rickets]], [[Parathyroidectomy|hungry bone syndrome]], [[hypophosphatemia]], [[Bile acid malabsorption|primary bile acid diarrhea]], [[radiation enteritis]], [[refeeding syndrome]], [[respiratory alkalosis]], [[short bowel syndrome]], [[sucrose intolerance]], [[tropical sprue]], [[Whipple's disease]] | |bgcolor="Beige"| [[Bacterial overgrowth]], [[bariatric surgery]], [[blind loop syndrome]], [[celiac disease]], [[chronic pancreatitis]], [[chronic renal failure]], [[Crohn's disease]], [[gastrectomy]], [[X-linked_hypophosphatemia |hereditary hypophosphatemia]], [[vitamin D resistant rickets|hereditary vitamin D-resistant rickets]], [[Parathyroidectomy|hungry bone syndrome]], [[hypophosphatemia]], [[Bile acid malabsorption|primary bile acid diarrhea]], [[radiation enteritis]], [[refeeding syndrome]], [[respiratory alkalosis]], [[short bowel syndrome]], [[sucrose intolerance]], [[tropical sprue]], [[Whipple's disease]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Oncologic''' | | '''Oncologic''' | ||
|bgcolor="Beige"| [[Acute myelogenous leukemia]], [[Chronic myelogenous leukemia | atypical chronic myelogenous leukemia]], [[carcinoid syndrome]], [[carcinoma of pancreas]], [[chronic eosinophilic leukemia]], [[chronic myelogenous leukemia]], [[chronic myelomonocytic leukemia]], [[malignant diseases]], [[malignant lymphoma]], [[ | |bgcolor="Beige"| [[Acute myelogenous leukemia]], [[Chronic myelogenous leukemia |atypical chronic myelogenous leukemia]], [[carcinoid syndrome]], [[carcinoma of pancreas]], [[chronic eosinophilic leukemia]], [[chronic myelogenous leukemia]], [[chronic myelomonocytic leukemia]], [[malignant diseases]], [[malignant lymphoma]], [[non-Hodgkin lymphoma]], [[oncogenic osteomalacia]], [[ganglioneuroma|thoracic ganglioneuroma]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Pulmonary''' | | '''Pulmonary''' | ||
|bgcolor="Beige"| [[Cystic fibrosis]], [[Respiratory alkalosis | respiratory alkalosis]] | |bgcolor="Beige"| [[Cystic fibrosis]], [[Respiratory alkalosis |respiratory alkalosis]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Miscellaneous''' | | '''Miscellaneous''' | ||
|bgcolor="Beige"| [[Alcohol]], [[amyloidosis]], [[citrate|citrated blood sample]], [[EDTA | EDTA blood sample]], [[fluoride|fluoride treated blood sample]], [[phosphate|inadequate phosphate intake]], [[blood|old blood samples]], [[oxalate|oxalate blood sample]] | |bgcolor="Beige"| [[Alcohol]], [[amyloidosis]], [[citrate|citrated blood sample]], [[EDTA |EDTA blood sample]], [[fluoride|fluoride treated blood sample]], [[phosphate|inadequate phosphate intake]], [[blood|old blood samples]], [[oxalate|oxalate blood sample]] | ||
|- | |- | ||
|} | |} | ||
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{{Reflist|2}} | {{Reflist|2}} | ||
[[Category:Crowdiagnosis]] | |||
[[Category:Blood tests]] | [[Category:Blood tests]] | ||
[[Category:Up-To-Date]] | |||
{{WH}} | {{WH}} | ||
{{WS}} | {{WS}} |
Latest revision as of 14:35, 20 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vendhan Ramanujam M.B.B.S [2]
Synonyms and keywords: LAP
Overview
Leukocyte alkaline phosphatase is an enzyme found within white blood cells. The blood level of leukocyte alkaline phosphatase is measured in order to help in the diagnosis of certain conditions. Higher levels of the enzyme are seen in polycythemia vera, essential thrombocytosis, primary myelofibrosis and leukemoid reaction. Lower levels are found in chronic myelogenous leukemia, aplastic anemia, paroxysmal nocturnal hemoglobinuria and acute myelogenous leukemia.
Causes of Increased Leukocyte alkaline phosphatase
Life Threatening Causes
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.
- Appendicitis
- Blood transfusion
- Burns
- Diabetic coma
- Diabetic ketoacidosis
- Eclampsia
- Epidural hemorrhage
- Hemorrhagic shock
- Hepatic necrosis
- Insect venoms
- Intracerebral hemorrhage
- Ischemic colitis
- Myocardial infarction
- Osteomyelitis
- Pelvic abscess
Common Causes
- Acute leukemia
- Essential thrombocytosis
- Leukemoid reaction
- Malignant lymphoma
- Megaloblastic anemia
- Multiple Myeloma[1]
- Myelofibrosis
- Polycythemia Vera
- Solid tumors
- Tissue necrosis[2][3]
Causes by Organ System
Causes in Alphabetical Order
Causes of Decreased Leukocyte Alkaline Phosphatase
Life Threatening Causes
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.
Common Causes
- Aplastic anemia
- Chronic myelogenous leukemia
- Hypophosphatemia[4]
- Iron deficiency anemia
- Paroxysmal nocturnal hemoglobinuria
- Systemic lupus erythematosus[5][6][7][8][9]
Causes by Organ System
Causes in Alphabetical Order
References
- ↑ Brook J, Dreisbach PB (1977). "Leukocyte alkaline phosphatase levels in multiple myeloma". J Lab Clin Med. 90 (1): 114–7. PMID 406335.
- ↑ Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
- ↑ Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:68 ISBN 140510368X
- ↑ Gaasbeek, A.; Meinders, AE. (2005). "Hypophosphatemia: an update on its etiology and treatment". Am J Med. 118 (10): 1094–101. doi:10.1016/j.amjmed.2005.02.014. PMID 16194637. Unknown parameter
|month=
ignored (help) - ↑ TANAKA, KR.; VALENTINE, WN.; FREDRICKS, RE. (1960). "Diseases or clinical conditions associated with low leukocyte alkaline phosphatase". N Engl J Med. 262: 912–8. doi:10.1056/NEJM196005052621804. PMID 13836802. Unknown parameter
|month=
ignored (help) - ↑ Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
- ↑ Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:68 ISBN 140510368X
- ↑ 8.0 8.1 Sharma, SC. (1980). "Leucocyte alkaline phosphatase in neonatal infections". Postgrad Med J. 56 (657): 485–7. PMID 7443603. Unknown parameter
|month=
ignored (help) - ↑ 9.0 9.1 Lokich, JJ. (1977). "Leukocyte alkaline phosphatase activity in patients with malignant disease". Cancer. 40 (3): 1202–5. PMID 902237. Unknown parameter
|month=
ignored (help)