What describes the threshold for intra-abdominal hypertension (IAH)?

What describes the threshold for intra-abdominal hypertension (IAH)?

• A. Greater than 10 mm Hg
• B. Greater than 15 mm Hg
• C. Greater than 12 mm Hg
• D. Greater than 20 mm Hg

Answer: (C)

Intra-abdominal hypertension begins when intra-abdominal pressure rises to 12 mmHg or higher. Normal IAP is about 5-7 mmHg in healthy adults, so reaching 12 mmHg marks the threshold where pressure elevation starts to impair organ perfusion and function, including the kidneys and abdomen, and can worsen respiratory mechanics. Clinically, IAP is often measured via bladder pressure. The grading of IAH progresses with higher pressures, but the cutoff defining the threshold is 12 mmHg. So, values below 12 mmHg are not IAH, while 12 mmHg and above indicate IAH (with higher numbers indicating more severe grades).

Intra-abdominal hypertension begins when intra-abdominal pressure rises to 12 mmHg or higher. Normal IAP is about 5-7 mmHg in healthy adults, so reaching 12 mmHg marks the threshold where pressure elevation starts to impair organ perfusion and function, including the kidneys and abdomen, and can worsen respiratory mechanics. Clinically, IAP is often measured via bladder pressure. The grading of IAH progresses with higher pressures, but the cutoff defining the threshold is 12 mmHg. So, values below 12 mmHg are not IAH, while 12 mmHg and above indicate IAH (with higher numbers indicating more severe grades).