ammonium

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ammonium

 [ah-mo´ne-um]
a hypothetical radical, NH4, forming salts analogous to those of the alkaline metals.
ammonium carbonate a mixture of ammonium compounds used as a liquefying expectorant in the treatment of chronic bronchitis and similar lung disorders. It is sometimes used as a reflex stimulant in “smelling salts” because of the strong ammonia odor it gives off.
ammonium chloride colorless or white crystals, with a cool, salty taste, used as an expectorant because it liquefies bronchial secretions. In the body it is changed to urea and hydrochloric acid, and thus is useful in acidifying the urine and increasing the rate of urine flow. Excessive dosage may produce acidosis.
ammonium lactate lactic acid neutralized with ammonium hydroxide, applied topically in the treatment of ichthyosis vulgaris and xerosis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

am·mo·ni·um

(ă-mō'nē-yŭm),
An ion, NH4+, formed by combining NH3 and H+ (the pKa value is 9.24); acts as a univalent metal in forming ammonium compounds.
Farlex Partner Medical Dictionary © Farlex 2012

storage lesion

Transfusion medicine The constellation of changes occurring in a unit of packed red cells during storage. See Red cell preservatives.
Storage lesions
Ammonium to 470 µmol/L–US: 800 µg/dL
Free Hb in plasma from 82 to 6580 mg/L–US: 8.2 to 658 mg/dL
K+ from 4.2 to 78.5 mmol/L–US: 4.2 to 78.5 mEq/L
ATP from 100% to 45%
2,3 DPG to < 10% of original levels–replenished within 24 hours of transfusion
Labile proteins, eg complement, fibronectin and coagulation factors ↓ to negligible
Na+ from 169 to 111 mmol/L–US: 169 to 111 mEq/L
pH from 7.6 to 6.7
Adverse physiologic effects of stored blood is negligible in the absence of a previous compromise of the Pt's–recipient's status
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

am·mo·ni·um

(ă-mō'nē-ŭm)
The ion, NH4+, formed by combination of NH3 and H+; behaves as a univalent metal in forming compounds.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Until the asphalt road was built in the 1980s connecting Siwa oasis to the Mediterranean coast road, arduous camel tracks were the only means to connect Siwa oasis with the outside world.
The 2010 list includes seven Middle Eastern sites: in Bahrain: Suq Al Qaysariya Muharraq; in Iraq: Al Hadba Minaret, Mosul; in Egypt: New Gourna village Luxor, West Bank and the Old Mosque of Shall Fortress, Siwa Oasis; in Israel: Old City of Lod and in the Old City Of Jerusalem, the Cathedral of St James; in Jordan: Damiya Dolmen Field, Jordan Valley.
EGYPT: Imaginative Traveller (01473 667337) offers seven nights' simple hotel B&B accom for pounds 588 from December 14 for fully-escorted Alexandria and Siwa Oasis tour.
A three-day bedouin festival - until recently closed to outsiders - takes place at the Siwa Oasis in Egypt every October at the time of the full moon.
1- Farafra Oasis 2- Dakhla Oasis 3- kharga Oasis 4- Bahariya Oasis 5- Siwa Oasis 6- Dahab 7- Marsa Alam 8- Nuweiba 9- Taba 10- Ras Mohamed and Nabq in Sharm El Sheikh 11- Makadi, Safaga, Gouna and Al Qusayr in Hurghada 12- Nuba in Aswan 13- Tunis village in Fayoum 14- Wadi Degla and Sant Samaan monastery in Cairo 15- Menya 16- Halayeb and Shalatyn The various activities that can be done by tourists in those destinations include hiking, snorkeling, diving, Safari, animals and birds watching, camping, photography, meditation and stargazing.
Egypt's Invisible Map aims to highlight the 16 eco-friendly areas in Egypt, including the White Desert, Siwa Oasis, Dahab, Makadi Bay, Nuweiba, Marsa Allam, as well as Halayeb and Shalateen.
Two tenders for the construction, revamping & maintenance of (a) eleven natural water springs, also (b) construction of mesqas & water storage tanks, also maintenance of natural water springs at different locations in Siwa Oasis (including Qarret Om El Saghir).
"The Salarium Room," Madiha interjects, 'is Latin for wealth, with the root 'sal' standing for salt; a highly sought-after, expensive yet essential commodity back in the day." A gift from her husband, the room is built entirely from salt bricks transported all the way from Siwa Oasis, an idea that came to the couple during a conversation with a taxi driver they had met in Siwa.
The firm has completed 55MW solar parks in Egypt, including the country's first large-scale 10MW solar plant in Siwa Oasis in 2015, a 15MW project in the Red Sea governorate, and a 20MW grid-connected solar park for agricultural farms near Toshka lakes in 2016.
Supply & erection of the compact type water treatment plant required for the Comprehensive Development Project at Siwa Oasis in Matrouh Governorate.
Temperatures are as follows: Cairo: 14 - 18 AC Tanta: 12 - 17 AC Alexandria: 14 - 16 AC Port Said: 12 - 16 AC Damietta: 11 - 16 AC Zagazig: 12 - 17 AC Mersa Matruh: 14 - 18 AC Baltim: 10 - 17 AC Siwa Oasis: 11 - 19 AC Ismailia: 10 - 17 AC Suez: 14 - 18 AC Arish: 11 - 17 AC