Practice NEB Dental Standard 4 questions with answers and explanations.
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Herd immunity is population-level protection that arises when enough people are immune to reduce transmission.
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Prevalence is the proportion of a population that has a condition at a specified time or period.
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Sensitivity is the ability of a test to correctly identify people who have the disease.
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Specificity is the ability of a test to correctly identify people who do not have the disease.
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Relative risk is a ratio comparing disease risk in an exposed group with risk in an unexposed group.
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Damage-control surgery is abbreviated surgery to control bleeding and contamination in a physiologically unstable trauma patient.
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Haemorrhagic shock is circulatory failure caused by acute blood loss and inadequate tissue perfusion.
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Tension pneumothorax is progressive pressurised pleural air causing respiratory compromise and obstructive shock.
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Acute appendicitis is inflammation of the appendix often producing migratory right-lower-quadrant pain.
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Small-bowel obstruction is mechanical or functional blockage causing pain, vomiting, distension and reduced passage of stool or flatus.
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Acute cholecystitis is inflammation of the gallbladder, commonly due to cystic-duct obstruction by a stone.
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Inguinal hernia is protrusion of abdominal contents through the inguinal region.
