Category: R
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Replacement of knee
Orthopedic implantation of a prosthetic knee joint, particularly useful in treating patients with severe disabling arthritis of the knee.
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Refractive keratoplasty
Treatment of myopia or hyperopia by removing a portion of the cornea, freezing it in order to reshape it surgically to correct refractive error, and then replacing it after it has thawed.
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Retention jaundice
Jaundice resulting from the inability of liver cells to remove bile pigment from circulation.
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Rapid sequence intubation
An airway control technique that uses powerful sedatives and paralytic drugs to quickly gain control of the airway, e.g., in life-threatening emergencies.
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True intersex
An individual whose genetic sex may be either male or female and whose sexual characteristics are of both sexes.
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Respiratory insufficiency
Inadequate oxygen intake or carbon dioxide removal associated with abnormal breathing and signs and symptoms of distress.
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Renal insufficiency
A reduced capacity of the kidney to remove waste products from the blood. It is preferentially known as “chronic kidney disease.” It is defined as >30 mg of urinary albumin excretion per gram of urinary creatinine, or a glomerular filtration rate of < 60mL/min/1.73m2.
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Risk for perioperative positioning injury
At risk for inadvertent anatomical and physical changes as a result of posture or equipment used during an invasive/surgical procedure.
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Risk for injury
A state in which the person has the potential for physical harm as a result of environmental hazards and/or impairments in his adaptive and defensive resources.
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Rectal injection
An instillation (i.e., not an injection) into the rectum; an enema.