Causes of Watermelon stomach
Watermelon stomach Causes: Book Excerpts
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Abdominal distention:
Medical causes
(Handbook of Signs & Symptoms (Third Edition))
❑ Abdominal cancer.Generalized abdominal distention may occur when the cancer — most commonly ovarian, hepatic, or pancreatic — produces ascites (usually in a patient with a known tumor). It’s an indication of advanced disease. Shifting dullness and a fluid wave accompany distention. Associated signs and symptoms may include severe abdominal pain, an abdominal mass, anorexia, jaundice, GI hemorrhage (hematemesis or melena), dyspepsia, and weight loss that progresses to muscle weakness and atrophy.
❑ Abdominal trauma.When brisk internal bleeding accompanies trauma, abdominal distention may be acute and dramatic. Associated signs and symptoms of this life-threatening disorder include abdominal rigidity with guarding, decreased or absent bowel sounds, vomiting, tenderness, and abdominal bruising. Pain may occur over the trauma site, or over the scapula if abdominal bleeding irritates the phrenic nerve. Signs of hypovolemic shock (such as hypotension and rapid, thready pulse) appear with significant blood loss.
❑ Cirrhosis. In cirrhosis, ascites causes generalized distention and is confirmed by a fluid wave, shifting dullness, and a puddle sign. Umbilical eversion and caput medusae (dilated veins around the umbilicus) are common. The patient may report a feeling of fullness or weight gain. Associated findings include vague abdominal pain, fever, anorexia, nausea, vomiting, constipation or diarrhea, bleeding tendencies, severe pruritus, palmar erythema, spider angiomas, leg edema, and possibly splenomegaly. Hematemesis, encephalopathy, gynecomastia, or testicular atrophy may also be seen. Jaundice is usually a late sign. Hepatomegaly occurs initially, but the liver may not be palpable if the patient has advanced disease.
❑ Heart failure. Generalized abdominal distention due to ascites typically accompanies severe cardiovascular impairment and is confirmed by shifting dullness and a fluid wave. Signs and symptoms of heart failure are numerous and depend on the disease stage and degree of cardiovascular impairment. Hallmarks include peripheral edema, jugular vein distention, dyspnea, and tachycardia. Common associated signs and symptoms include hepatomegaly (which may cause right upper quadrant pain), nausea, vomiting, a productive cough, crackles, cool extremities, cyanotic nail beds, nocturia, exercise intolerance, nocturnal wheezing, diastolic hypertension, and cardiomegaly.
❑ Irritable bowel syndrome. Irritable bowel syndrome may produce intermittent, localized distention — the result of periodic intestinal spasms. Lower abdominal pain or cramping typically accompanies these spasms. The pain is usually relieved by defecation or by passage of intestinal gas and is aggravated by stress. Other possible signs and symptoms include diarrhea that may alternate with constipation or normal bowel function, nausea, dyspepsia, straining and urgency at defecation, a feeling of incomplete evacuation, and small, mucus-streaked stools.
❑ Large-bowel obstruction. Dramatic abdominal distention is characteristic in this life-threatening disorder; in fact, loops of the large bowel may become visible on the abdomen. Constipation precedes distention and may be the only symptom for days. Associated findings include tympany, high-pitched bowel sounds, and the sudden onset of colicky lower abdominal pain that becomes persistent. Fecal vomiting and diminished peristaltic waves and bowel sounds are late signs.
❑ Mesenteric artery occlusion (acute). In this life-threatening disorder, abdominal distention usually occurs several hours after the sudden onset of severe, colicky periumbilical pain accompanied by rapid (even forceful) bowel evacuation. The pain later becomes constant and diffuse. Related signs and symptoms include severe abdominal tenderness with guarding and rigidity, absent bowel sounds and, occasionally, a bruit in the right iliac fossa. The patient may also experience vomiting, anorexia, diarrhea, or constipation. Late signs include fever, tachycardia, tachypnea, hypotension, and cool, clammy skin. Abdominal distention or GI bleeding may be the only clue if pain is absent.
❑ Paralytic ileus. Paralytic ileus, which produces generalized distention with a tympanic percussion note, is accompanied by absent or hypoactive bowel sounds and, occasionally, mild abdominal pain and vomiting. The patient may be severely constipated or may pass flatus and small, liquid stools.
❑ Peritonitis. Peritonitis is a life-threatening disorder in which abdominal distention may be localized or generalized, depending on the extent of the inflammation. Fluid accumulates within the peritoneal cavity and then within the bowel lumen, causing a fluid wave and shifting dullness. Typically, distention is accompanied by sudden and severe abdominal pain that worsens with movement, rebound tenderness, and abdominal rigidity.
The skin over the patient’s abdomen may appear taut. Associated signs and symptoms usually include hypoactive or absent bowel sounds, fever, chills, hyperalgesia, nausea, and vomiting. Signs of shock, such as tachycardia and hypotension, appear with significant fluid loss into the abdomen.
❑ Small-bowel obstruction. Abdominal distention is characteristic in small-bowel obstruction, a life-threatening disorder, and is most pronounced during late obstruction, especially in the distal small bowel. Auscultation reveals hypoactive or hyperactive bowel sounds, whereas percussion produces a tympanic note. Accompanying signs and symptoms include colicky periumbilical pain, constipation, nausea, and vomiting; the higher the obstruction, the earlier and more severe the vomiting. Rebound tenderness reflects intestinal strangulation with ischemia. Associated signs and symptoms include drowsiness, malaise, and signs of dehydration. Signs of hypovolemic shock appear with progressive dehydration and plasma loss.
❑ Toxic megacolon (acute).Toxic megacolon is a life-threatening complication of infectious or ulcerative colitis. It produces dramatic abdominal distention that usually develops gradually and is accompanied by a tympanic percussion note, diminished or absent bowel sounds, and mild rebound tenderness. The patient also presents with abdominal pain and tenderness, fever, tachycardia, and dehydration.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Signs & Symptoms (Third Edition), 2006
Abdominal distention:
Medical causes
(Professional Guide to Signs & Symptoms (Fifth Edition))
Abdominal cancer
Generalized abdominal distention may occur when the cancer—most commonly ovarian, hepatic, or pancreatic cancer—produces ascites (usually in a patient with a known tumor). It’s an indication of advanced disease. Shifting dullness and a fluid wave accompany distention. Associated signs and symptoms may include severe abdominal pain, an abdominal mass, anorexia, jaundice, GI hemorrhage (hematemesis or melena), dyspepsia, and weight loss that progresses to muscle weakness and atrophy.
Abdominal trauma
When brisk internal bleeding accompanies trauma, abdominal distention may be acute and dramatic. Associated signs and symptoms of this life-threatening disorder include abdominal rigidity with guarding, decreased or absent bowel sounds, vomiting, tenderness, and abdominal bruising. The patient may feel pain over the trauma site, or over the scapula if abdominal bleeding irritates the phrenic nerve. Signs of hypovolemic shock (such as hypotension and rapid, thready pulse) appear with significant blood loss.
Bladder distention
Various disorders cause bladder distention, which in turn causes lower abdominal distention. Slight dullness on percussion above the symphysis indicates mild bladder distention. A palpable, smooth, rounded, fluctuant suprapubic mass suggests severe distention; a fluctuant mass extending to the umbilicus indicates extremely severe distention. Urinary dribbling, frequency, or urgency may occur with urinary obstruction. Suprapubic discomfort is also common.
Cirrhosis
In cirrhosis, ascites causes generalized distention and is confirmed by a fluid wave, shifting dullness, and a puddle sign. Umbilical eversion and caput medusae (dilated veins around the umbilicus) are common. The patient may report a feeling of fullness or weight gain. Associated findings include vague abdominal pain, fever, anorexia, nausea, vomiting, constipation or diarrhea, bleeding tendencies, severe pruritus, palmar erythema, spider angiomas, leg edema, and possibly splenomegaly. Hematemesis, encephalopathy, gynecomastia, or testicular atrophy may also occur. Jaundice is usually a late sign. Hepatomegaly occurs initially, but the liver may not be palpable in advanced disease.
Gastric dilation (acute)
Left-upper-quadrant distention is characteristic in acute gastric dilation, but the presentation varies. The patient usually complains of epigastric fullness or pain and nausea with or without vomiting. Physical examination reveals tympany, gastric tenderness, and a succussion splash. Initially, peristalsis may be visible. Later, hypoactive or absent bowel sounds confirm ileus. The patient may be pale and diaphoretic and may exhibit tachycardia or bradycardia.
Heart failure
Generalized abdominal distention due to ascites typically accompanies severe cardiovascular impairment and is confirmed by shifting dullness and a fluid wave. Signs and symptoms of heart failure are numerous and depend on the disease stage and degree of cardiovascular impairment. Hallmarks include peripheral edema, jugular vein distention, dyspnea, and tachycardia. Common associated signs and symptoms include hepatomegaly (which may cause right-upper-quadrant pain), nausea, vomiting, productive cough, crackles, cool extremities, cyanotic nail beds, nocturia, exercise intolerance, nocturnal wheezing, diastolic hypertension, and cardiomegaly.
Irritable bowel syndrome (IBS)
IBS may produce intermittent, localized distention—the result of periodic intestinal spasms. Lower abdominal pain or cramping typically accompanies these spasms. The pain is usually relieved by defecation or by passage of intestinal gas and is aggravated by stress. Other possible signs and symptoms include diarrhea that may alternate with constipation or normal bowel function; nausea; dyspepsia; straining and urgency at defecation; feeling of incomplete evacuation; and small, mucus-streaked stools.
Large-bowel obstruction
Dramatic abdominal distention is characteristic in large-bowel obstruction, a life-threatening disorder; in fact, loops of the large bowel may become visible on the abdomen. Constipation precedes distention and may be the only symptom for days. Associated findings include tympany, high-pitched bowel sounds, and sudden onset of colicky lower abdominal pain that becomes persistent. Fecal vomiting and diminished peristaltic waves and bowel sounds are late signs.
Mesenteric artery occlusion (acute)
In mesenteric artery occlusion—a life-threatening disorder—abdominal distention usually occurs several hours after the sudden onset of severe, colicky periumbilical pain accompanied by rapid (even forceful) bowel evacuation. The pain later becomes constant and diffuse. Related signs and symptoms include severe abdominal tenderness with guarding and rigidity, absent bowel sounds and, occasionally, a bruit in the right iliac fossa. The patient may also experience vomiting, anorexia, diarrhea, or constipation. Late signs include fever, tachycardia, tachypnea, hypotension, and cool, clammy skin. Abdominal distention or GI bleeding may be the only clue if pain is absent.
Nephrotic syndrome
Nephrotic syndrome may produce massive edema, causing generalized abdominal distention with a fluid wave and shifting dullness. It may also produce elevated blood pressure, hematuria or oliguria, fatigue, anorexia, depression, pallor, periorbital edema, scrotal swelling, and skin striae.
Ovarian cysts
Typically, large ovarian cysts produce lower abdominal distention accompanied by umbilical eversion. Because they’re thin walled and fluid filled, these cysts produce a fluid wave and shifting dullness—signs that mimic ascites. Lower abdominal pain and a palpable mass may be present.
Paralytic ileus
Paralytic ileus, which produces generalized distention with a tympanic percussion note, is accompanied by absent or hypoactive bowel sounds and, occasionally, mild abdominal pain and vomiting. The patient may be severely constipated or may pass flatus and small, liquid stools.
Peritonitis
In peritonitis—a life-threatening disorder—abdominal distention may be localized or generalized, depending on the extent of peritonitis. Fluid accumulates first within the peritoneal cavity and then within the bowel lumen, causing a fluid wave and shifting dullness. Typically, distention is accompanied by rebound tenderness, abdominal rigidity, and sudden and severe abdominal pain that worsens with movement.
The skin over the patient’s abdomen may appear taut. Associated signs and symptoms usually include hypoactive or absent bowel sounds, fever, chills, hyperalgesia, nausea, and vomiting. Signs of shock, such as tachycardia and hypotension, appear with significant fluid loss into the abdomen.
Small-bowel obstruction
Abdominal distention, which is characteristic in small-bowel obstruction—a life-threatening disorder—is most pronounced during late obstruction, especially in the distal small bowel. Auscultation reveals hypoactive or hyperactive bowel sounds, whereas percussion produces a tympanic note. Accompanying signs and symptoms include colicky periumbilical pain, constipation, nausea, and vomiting; the higher the obstruction, the earlier and more severe the vomiting. Rebound tenderness reflects intestinal strangulation with ischemia. Associated signs and symptoms include drowsiness, malaise, and signs of dehydration. Signs of hypovolemic shock appear with progressive dehydration and plasma loss.
Toxic megacolon (acute)
Toxic megacolon is a life-threatening complication of infectious or ulcerative colitis that produces dramatic abdominal distention. The distention usually develops gradually and is accompanied by a tympanic percussion note, diminished or absent bowel sounds, and mild rebound tenderness. The patient also experiences abdominal pain and tenderness, fever, tachycardia, and dehydration.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Signs & Symptoms (Fifth Edition), 2006
Abdominal distention:
Medical causes
(Signs & Symptoms: A 2-in-1 Reference for Nurses)
Abdominal cancer
Generalized abdominal distention may occur when the cancer — most commonly ovarian, hepatic, or pancreatic — produces ascites (usually in a patient with a known tumor). It’s an indication of advanced disease. Shifting dullness and a fluid wave accompany distention. Associated signs and symptoms may include severe abdominal pain, an abdominal mass, anorexia, jaundice, GI hemorrhage (hematemesis or melena), dyspepsia, and weight loss that progresses to muscle weakness and atrophy.
Abdominal trauma
When brisk internal bleeding accompanies trauma, abdominal distention may be acute and dramatic. Associated signs and symptoms of this life-threatening disorder include abdominal rigidity with guarding, decreased or absent bowel sounds, vomiting, tenderness, and abdominal bruising. Pain may occur over the trauma site or over the scapula if abdominal bleeding irritates the phrenic nerve. Signs of hypovolemic shock (such as hypotension and rapid, thready pulse) appear with significant blood loss.
Bladder distention
Various disorders cause bladder distention which, in turn, causes lower abdominal distention. Slight dullness on percussion above the symphysis pubis indicates mild bladder distention. A palpable, smooth, rounded, fluctuant suprapubic mass suggests severe bladder distention; a fluctuant mass extending to the umbilicus indicates extremely severe bladder distention. Urinary dribbling, frequency, or urgency may occur with urinary obstruction. Suprapubic discomfort is also common.
Cirrhosis
With cirrhosis, ascites causes generalized distention and is confirmed by a fluid wave and shifting dullness. Umbilical eversion and caput medusae (dilated veins around the umbilicus) are common. The patient may report a feeling of fullness or weight gain. Associated findings include vague abdominal pain, fever, anorexia, nausea, vomiting, constipation or diarrhea, bleeding tendencies, severe pruritus, palmar erythema, spider angiomas, leg edema and, possibly, splenomegaly. Hematemesis, encephalopathy, gynecomastia, or testicular atrophy may also be seen. Jaundice is usually a late sign. Hepatomegaly occurs initially; however, the liver may not be palpable if the patient has advanced disease.
Gastric dilation (acute)
Left-upper-quadrant distention is characteristic of acute gastric dilation, but the presentation varies. The patient usually complains of epigastric fullness or pain and nausea (with or without vomiting). Physical examination reveals tympany, gastric tenderness, and a succussion splash. Initially, visible peristalsis may occur. Later, hypoactive or absent bowel sounds confirm ileus. The patient may be pale and diaphoretic and may exhibit tachycardia or bradycardia.
Heart failure
Generalized abdominal distention due to ascites typically accompanies severe cardiovascular impairment and is confirmed by shifting dullness and a fluid wave. Signs and symptoms of heart failure are numerous and depend on the disease stage and degree of cardiovascular impairment. Hallmarks include peripheral edema, jugular vein distention, dyspnea, and tachycardia. Common associated signs and symptoms include hepatomegaly (which may cause right-upper-quadrant pain), nausea, vomiting, productive cough, crackles, cool extremities, cyanotic nail beds, nocturia, exercise intolerance, nocturnal wheezing, diastolic hypertension, and cardiomegaly.
Irritable bowel syndrome
Irritable bowel syndrome may produce intermittent, localized distention — the result of periodic intestinal spasms. Lower abdominal pain or cramping typically accompanies these spasms. The pain is usually relieved by defecation or by passage of intestinal gas and is aggravated by stress. Other possible signs and symptoms include diarrhea that may alternate with constipation or normal bowel function; nausea; dyspepsia; straining and urgency at defecation; feeling of incomplete evacuation; and small, mucus-streaked stools.
Large-bowel obstruction
Dramatic abdominal distention is characteristic of large-bowel obstruction, a life-threatening disorder; in fact, loops of the large bowel may become visible on the abdomen. Constipation precedes distention and may be the only symptom for days. Associated findings include tympany, high-pitched bowel sounds, and the sudden onset of colicky lower abdominal pain that becomes persistent. Fecal vomiting and diminished peristaltic waves and bowel sounds are late signs.
Mesenteric artery occlusion (acute)
In acute mesenteric artery occlusion, a life-threatening disorder, abdominal distention usually occurs several hours after the sudden onset of severe, colicky periumbilical pain accompanied by rapid (even forceful) bowel evacuation. The pain later becomes constant and diffuse. Related signs and symptoms include severe abdominal tenderness with guarding and rigidity, absent bowel sounds and, occasionally, a bruit in the right iliac fossa. The patient may also experience vomiting, anorexia, diarrhea, or constipation. Late signs include fever, tachycardia, tachypnea, hypotension, and cool, clammy skin. Abdominal distention or GI bleeding may be the only clue if pain is absent.
Nephrotic syndrome
Nephrotic syndrome may produce massive edema, causing generalized abdominal distention with a fluid wave and shifting dullness. It may also produce elevated blood pressure, hematuria or oliguria, fatigue, anorexia, depression, pallor, periorbital edema, scrotal swelling, and skin striae.
Ovarian cysts
Typically, large ovarian cysts produce lower abdominal distention accompanied by umbilical eversion. Because they’re thin walled and fluid filled, these cysts produce a fluid wave and shifting dullness — signs that mimic ascites. Lower abdominal pain and a palpable mass may be present.
Paralytic ileus
Paralytic ileus, which produces generalized distention with a tympanic percussion note, is accompanied by absent or hypoactive bowel sounds and, occasionally, extreme distress and vomiting. The patient may be severely constipated or may pass flatus and small, liquid stools.
Peritonitis
In peritonitis, a life-threatening disorder, abdominal distention may be localized or generalized, depending on the extent of peritonitis. Fluid accumulates first within the peritoneal cavity and then within the bowel lumen, causing a fluid wave and shifting dullness. Typically, distention is accompanied by sudden and severe abdominal pain that worsens with movement. Rebound tenderness and abdominal rigidity may be present.
Associated signs and symptoms usually include hypoactive or absent bowel sounds, fever, chills, hyperalgesia, nausea, and vomiting. Also, the skin over the patient’s abdomen may appear taut. Signs of shock, such as tachycardia and hypotension, appear with significant fluid loss into the abdomen.
Small-bowel obstruction
Abdominal distention, which is characteristic of small-bowel obstruction, is most pronounced during late obstruction, especially in the distal small bowel. Auscultation reveals hypoactive or hyperactive bowel sounds, whereas percussion produces a tympanic note. Accompanying signs and symptoms of this life-threatening disorder include colicky periumbilical pain, constipation, nausea, and vomiting; the higher the obstruction, the earlier and more severe the vomiting. Rebound tenderness reflects intestinal strangulation with ischemia. Associated signs and symptoms include drowsiness, malaise, and signs of dehydration. Signs of hypovolemic shock appear with progressive dehydration and plasma loss.
Toxic megacolon (acute)
Acute toxic megacolon is a life-threatening complication of infectious or ulcerative colitis. It produces dramatic abdominal distention that usually develops gradually and is accompanied by a tympanic percussion note, diminished or absent bowel sounds, and mild rebound tenderness. The patient also presents with abdominal pain and tenderness, fever, tachycardia, and dehydration.
» READ BOOK EXCERPT ONLINE »
Source: Signs & Symptoms: A 2-in-1 Reference for Nurses, 2007
Abdominal distention:
Medical causes
(Nursing: Interpreting Signs and Symptoms)
Abdominal cancer.Generalized abdominal distention may occur when the cancer—most commonly ovarian, hepatic, or pancreatic—produces ascites (usually in a patient with a known tumor). It's an indication of advanced disease. Shifting dullness and a fluid wave accompany distention. Associated signs and symptoms may include severe abdominal pain, an abdominal mass, anorexia, jaundice, GI hemorrhage (hematemesis or melena), dyspepsia, and weight loss that progresses to muscle weakness and atrophy.
Abdominal trauma.When brisk internal bleeding accompanies trauma, abdominal distention may be acute and dramatic. Associated signs and symptoms of this life-threatening disorder include abdominal rigidity with guarding, decreased or absent bowel sounds, vomiting, tenderness, and abdominal bruising. Pain may occur over the trauma site, or over the scapula if abdominal bleeding irritates the phrenic nerve. Signs of hypovolemic shock (such as hypotension and rapid, thready pulse) appear with significant blood loss.
Cirrhosis.In cirrhosis, ascites causes generalized distention and is confirmed by a fluid wave, shifting dullness, and a puddle sign. Umbilical eversion and caput medusae (dilated veins around the umbilicus) are common. The pa-tient may report a feeling of fullness or weight gain. Associated findings include vague abdominal pain, fever, anorexia, nausea, vomiting, constipation or diarrhea, bleeding tendencies, severe pruritus, palmar erythema, spider angiomas, leg edema, and possibly splenomegaly. Hematemesis, encephalopathy, gynecomastia, or testicular atrophy may also be seen. Jaundice is usually a late sign. Hepatomegaly occurs initially, but the liver may not be palpable if the patient has advanced disease.
Heart failure.Generalized abdominal distention due to ascites typically accompanies severe cardiovascular impairment and is confirmed by shifting dullness and a fluid wave. Signs and symptoms of heart failure are numerous and depend on the disease stage and degree of cardiovascular impairment. Hallmarks include peripheral edema, jugular vein distention, dyspnea, and tachycardia. Common associated signs and symptoms include hepatomegaly (which may cause right upper quadrant pain), nausea, vomiting, a productive cough, crackles, cool extremities, cyanotic nail beds, nocturia, exercise intolerance, nocturnal wheezing, diastolic hypertension, weight gain, and cardiomegaly.
Irritable bowel syndrome.Irritable bowel syndrome may produce intermittent, localized distention—the result of periodic intestinal spasms. Lower abdominal pain or cramping typically accompanies these spasms. The pain is usually relieved by defecation or by passage of intestinal gas and is aggravated by stress. Other possible signs and symptoms include diarrhea that may alternate with constipation or normal bowel function, nausea, dyspepsia, straining and urgency at defecation, a feeling of incomplete evacuation, and small, mucus-streaked stools.
Large-bowel obstruction.Dramatic abdominal distention is characteristic in this life-threatening disorder; in fact, loops of the large bowel may become visible on the abdomen. Constipation precedes distention and may be the only symptom for days. Associated findings include tympany, high-pitched bowel sounds, and the sudden onset of colicky lower abdominal pain that becomes persistent. Nausea, fecal vomiting, and diminished peristaltic waves and bowel sounds are late signs.
Mesenteric artery occlusion (acute). In this life-threatening disorder, abdominal distention usually occurs several hours after the sudden onset of severe, colicky periumbilical pain accompanied by rapid (even forceful) bowel evacuation. The pain later becomes constant and diffuse. Related signs and symptoms include severe abdominal tenderness with guarding and rigidity, absent bowel sounds and, occasionally, a bruit in the right iliac fossa. The patient may also experience vomiting, anorexia, diarrhea, or constipation. Late signs include fever, tachycardia, tachypnea, hypotension, and cool, clammy skin. Abdominal distention or GI bleeding may be the only clue if pain is absent.
Paralytic ileus.Paralytic ileus, which produces generalized distention with a tympanic percussion note, is accompanied by absent or hypoactive bowel sounds and, occasionally, mild abdominal pain and vomiting. The patient may be severely constipated or may pass flatus and small, liquid stools.
Peritonitis.Peritonitis is a life-threatening disorder in which abdominal distention may be localized or generalized, depending on the extent of the inflammation. Fluid accumulates within the peritoneal cavity and then within the bowel lumen, causing a fluid wave and shifting dullness. Typically, distention is accompanied by sudden and severe abdominal pain that worsens with movement, rebound tenderness, and abdominal rigidity.
The skin over the patient's abdomen may appear taut. Associated signs and symptoms usually include hypoactive or absent bowel sounds, fever, chills, hyperalgesia, nausea, and vomiting. Signs of shock, such as tachycardia and hypotension, appear with significant fluid loss into the abdomen.
Small-bowel obstruction.Abdominal distention is characteristic in small-bowel obstruction, a life-threatening disorder, and is most pronounced during late obstruction, especially in the distal small bowel. Auscultation reveals hypoactive or hyperactive bowel sounds, whereas percussion produces a tympanic note. Accompanying signs and symptoms include colicky periumbilical pain, constipation, nausea, and vomiting; the higher the obstruction, the earlier and more severe the vomiting. Rebound tenderness reflects intestinal strangulation with ischemia. Associated signs and symptoms include drowsiness, malaise, and signs of dehydration. Signs of hypovolemic shock appear with progressive dehydration and plasma loss.
Toxic megacolon (acute).Toxic megacolon is a life-threatening complication of infectious or ulcerative colitis. It produces dramatic abdominal distention that usually develops gradually and is accompanied by a tympanic percussion note, diminished or absent bowel sounds, and mild rebound tenderness. The patient also presents with abdominal pain and tenderness, fever, tachycardia, and dehydration.
» READ BOOK EXCERPT ONLINE »
Source: Nursing: Interpreting Signs and Symptoms, 2007
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