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===Pregnancy===
===Pregnancy===
Nausea or "[[morning sickness]]" is a common symptom of [[pregnancy]]. In the first trimester nearly 80% of women have some degree of nausea.<ref>{{cite journal |author=Koch KL, Frissora CL |title=Nausea and vomiting during pregnancy |journal=Gastroenterol. Clin. North Am. |volume=32 |issue=1 |pages=201–34, vi |year=2003 |month=March |pmid=12635417 |doi= |url=}}</ref> Pregnancy therefore should be considered in any women of child bearing age.<ref name=USA07/> While usually it is mild and self limiting severe cases known as [[hyperemesis gravidarum]] may require treatment.<ref name=preg07>{{cite journal |author=Sheehan P |title=Hyperemesis gravidarum--assessment and management |journal=Aust Fam Physician |volume=36 |issue=9 |pages=698–701 |year=2007 |month=September |pmid=17885701 |doi= |url=}}</ref>
Nausea or "[[morning sickness]]" or * [http://www.pregnancynausea.org pregnancy nausea] is a common symptom of [[pregnancy]]. In the first trimester nearly 80% of women have some degree of nausea.<ref>{{cite journal |author=Koch KL, Frissora CL |title=Nausea and vomiting during pregnancy |journal=Gastroenterol. Clin. North Am. |volume=32 |issue=1 |pages=201–34, vi |year=2003 |month=March |pmid=12635417 |doi= |url=}}</ref> Pregnancy therefore should be considered in any women of child bearing age.<ref name=USA07/> While usually it is mild and self limiting severe cases known as [[hyperemesis gravidarum]] may require treatment.<ref name=preg07>{{cite journal |author=Sheehan P |title=Hyperemesis gravidarum--assessment and management |journal=Aust Fam Physician |volume=36 |issue=9 |pages=698–701 |year=2007 |month=September |pmid=17885701 |doi= |url=}}</ref>


===Disequilibrium===
===Disequilibrium===

Revision as of 20:21, 12 July 2010

"Wamble" redirects here. For the American guitarist, see Doug Wamble.
For other uses, see Nausea (disambiguation).
Nausea
SpecialtyGastroenterology, emetology Edit this on Wikidata
Look up nausea in Wiktionary, the free dictionary.

Nausea (Latin nausea, from Greek ναυσίη, nausiē, "seasickness" "wamble"[1]), is a sensation of unease and discomfort in the upper stomach with an urge to vomit.[2] An attack of nausea is known as a qualm.

The most common cause is gastroenteritis (a stomach infection) or food poisoning but nausea also frequently occurs as a medication side effect and in pregnancy. A number of medications exist that improve symptoms including: dimenhydrinate, metoclopramide, and ondansetron.

Differential diagnosis

The causes of nausea are many. One organization listed 700 in 2009.[3] Gastrointestinal infections (37%) and food poisoning are the two most common causes.[2][4] While side effects from medications (3%) and pregnancy are also relatively frequent.[2][4] In 10% of people the cause remains unknown.[4]

Food poisoning

Food poisoning usually causes an abrupt onset of nausea and vomiting one to six hours after ingestion of contaminated food and lasts for one to two days.[5] It is due to toxins produced by bacteria in the food.[5]

Medications

Most medications can potentially cause nausea.[5] Some of the most frequently associated include chemotherapy regimens and general anaesthetic agents.

Pregnancy

Nausea or "morning sickness" or * pregnancy nausea is a common symptom of pregnancy. In the first trimester nearly 80% of women have some degree of nausea.[6] Pregnancy therefore should be considered in any women of child bearing age.[5] While usually it is mild and self limiting severe cases known as hyperemesis gravidarum may require treatment.[7]

Disequilibrium

A number of conditions involving balance such as motion sickness and vertigo can lead to nausea and vomiting.

Potentially serious

While most causes of nausea are not serious some serious causes do occur. These include: diabetic ketoacidosis, surgical problems (pancreatitis, small bowel obstruction, meningitis, appendicitis, cholecystitis), Addisonian crisis, and hepatitis among others.[2]

Diagnostic approach

Often no investigations are needed, however basic lab tests may be appropriate.[2] If a bowel obstruction is considered abdominal x-rays may be useful.[2]

Treatment

If dehydration is present, rehydration with oral electrolyte solutions is preferred.[2] If this is not effective intravenous rehydration may be required.[2]

Medications

Dimenhydrinate (Gravol) is an inexpensive and effective medication for preventing postoperative nausea and vomiting.[8] In certain people cannabinoids may be effective in reducing chemotherapy associated nausea and vomiting.[9][10] Ondansetron (Zofran) is effective for nausea and vomiting but is expensive.[5] Pyridoxine or metoclopramide are the first line treatments for pregnancy related nausea and vomiting.[7] Medical marijuana may be prescribed where allowed for certain indication.

Complementary medicine

Acupuncture is thought to be effective for the prevention of post operative nausea and vomiting.[11] The spices ginger and peppermint have been used for centuries as traditional remedies for nausea. Evidence, however, does not support ginger's effectiveness in post op nausea and vomiting.[12] It however may be effective in pregnancy associated nausea and vomiting.[13]

Prognosis

While short-term nausea and vomiting are generally harmless, they may sometimes indicate a more serious condition. When associated with prolonged vomiting, it may lead to dehydration and/or dangerous electrolyte imbalances.

Epidemiology

Nausea and or vomiting is the main complaint in 1.6% of visits to family physicians in Australia.[4] However only 25% of people with nausea visit their family physician.[2] It is most common in those 15–24 years old and less common in other ages.[4]

References

  1. ^ "Wamble definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms".
  2. ^ a b c d e f g h i Metz A, Hebbard G (2007). "Nausea and vomiting in adults--a diagnostic approach". Aust Fam Physician. 36 (9): 688–92. PMID 17885699. {{cite journal}}: Unknown parameter |month= ignored (help)
  3. ^ "Differential Diagnosis for Nausea".
  4. ^ a b c d e Helena Britt (2007). "Presentations of nausea and vomiting" (PDF). Aust Fam Physician. 36 (9): 673–784. {{cite journal}}: Unknown parameter |month= ignored (help)
  5. ^ a b c d e Scorza K, Williams A, Phillips JD, Shaw J (2007). "Evaluation of nausea and vomiting". Am Fam Physician. 76 (1): 76–84. PMID 17668843. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  6. ^ Koch KL, Frissora CL (2003). "Nausea and vomiting during pregnancy". Gastroenterol. Clin. North Am. 32 (1): 201–34, vi. PMID 12635417. {{cite journal}}: Unknown parameter |month= ignored (help)
  7. ^ a b Sheehan P (2007). "Hyperemesis gravidarum--assessment and management". Aust Fam Physician. 36 (9): 698–701. PMID 17885701. {{cite journal}}: Unknown parameter |month= ignored (help)
  8. ^ Kranke P, Morin AM, Roewer N, Eberhart LH (2002). "Dimenhydrinate for prophylaxis of postoperative nausea and vomiting: a meta-analysis of randomized controlled trials". Acta Anaesthesiol Scand. 46 (3): 238–44. PMID 11939912. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  9. ^ Tramèr MR, Carroll D, Campbell FA, Reynolds DJ, Moore RA, McQuay HJ (2001). "Cannabinoids for control of chemotherapy induced nausea and vomiting: quantitative systematic review". BMJ. 323 (7303): 16–21. PMC 34325. PMID 11440936. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  10. ^ Drug Policy Alliance (2001). "Medicinal Uses of Marijuana: Nausea, Emesis and Appetite Stimulation". Retrieved 2007-08-02. {{cite web}}: |author= has generic name (help)
  11. ^ Lee A, Fan LT (2009). "Stimulation of the wrist acupuncture point P6 for preventing postoperative nausea and vomiting". Cochrane Database Syst Rev (2): CD003281. doi:10.1002/14651858.CD003281.pub3. PMID 19370583.
  12. ^ Betz O, Kranke P, Geldner G, Wulf H, Eberhart LH (2005). "[Is ginger a clinically relevant antiemetic? A systematic review of randomized controlled trials]". Forsch Komplementarmed Klass Naturheilkd (in German). 12 (1): 14–23. doi:10.1159/000082536. PMID 15772458. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  13. ^ Chaiyakunapruk N, Kitikannakorn N, Nathisuwan S, Leeprakobboon K, Leelasettagool C (2006). "The efficacy of ginger for the prevention of postoperative nausea and vomiting: a meta-analysis". Am. J. Obstet. Gynecol. 194 (1): 95–9. doi:10.1016/j.ajog.2005.06.046. PMID 16389016. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)


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