Preoperative Care
Preoperative Care - Related Videos
01:36
Rabbit Preoperative Preparation, Surgical Procedures, and Postoperative Care
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Preoperative Preparation The initial assessment should include observation of alertness, posture, gait, and grooming behavior, as changes in these parameters may indicate underlying health issues. Body weight should be recorded...
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Preoperational Thought IV: Numbers
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2026
Piaget’s preoperational stage, from about ages 2 to 7, is characterized by rapid growth in symbolic thinking. Children increasingly use words, images, and objects to represent ideas, although their reasoning remains largely intuitive. During this period, number sense develops from memorized counting toward an understanding of quantity and basic arithmetic.Counting and CardinalityChildren younger than age 3 may recite number words without fully understanding their numerical meaning. During the...
11:06
Subretinal Implantation of RPE on a Carrier in Minipigs: Guidelines for Preoperative Preparations, Surgical Techniques, and Postoperative Care
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Cited by 1 •
2022
The subretinal implantation of retinal pigmented epithelium (RPE) is one of the most promising approaches for the treatment of degenerative retinal diseases. However, the performance of preclinical studies on large-eye animal models remains challenging. This report presents guidelines for the subretinal transplantation of RPE on a cell carrier into minipigs.
01:19
Preoperational Thought I: The Symbolic Function
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2026
Jean Piaget’s preoperational stage of cognitive development spans approximately ages 2 to 7. During this period, children increasingly think symbolically but are not yet able to perform logical mental operations consistently. Symbols are words, pictures, numbers, or objects that stand for something else. For example, the word "dog" can represent an entire category of animals, even when no dog is physically present. This ability allows children to mentally represent people, objects, and events...
01:30
Conservation During the Preoperational Stage
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2026
Conservation is the understanding that quantity remains unchanged when appearance or arrangement changes, provided nothing is added or removed. Piaget used conservation tasks to examine children’s developing logical reasoning and their tendency to rely on perceptual appearance.Liquid Conservation TaskIn the classic liquid conservation task, a child is shown equal amounts of water in two identical short, wide glasses. The water from one glass is then poured into a taller, narrower glass. Many...
FAQs
Risk stratification organizes findings according to their potential effect on surgery, anesthesia, and recovery. The process brings together medical history, physical examination, medication and allergy information, and targeted test results. Clinicians can then identify conditions requiring treatment, additional attention, or changes to the planned operation, reducing preventable complications and supporting more appropriate perioperative management.
Medication and allergy reviews reveal factors that may affect the surgical plan or perioperative management. Clinicians use this information alongside the patient’s history and examination to identify medication-related concerns, avoid relevant allergens, and coordinate care with anesthesia and surgery teams. The review therefore supports safer planning rather than treating the operation as an isolated event.
Several factors can require attention before surgery, including chronic disease, infection, nutrition, and medication use. Addressing these issues may improve the patient’s readiness and reduce avoidable risk during perioperative care. When a condition cannot be adequately optimized or changes the expected risk, clinicians may need to modify the surgical plan or coordinate additional management.
Informed consent supports shared understanding of the planned care, while communication aligns expectations among patients, families, surgeons, anesthesiologists, and nursing teams. This exchange helps clarify relevant concerns and prepares the care team for the patient’s needs. It also establishes a clearer basis for postoperative monitoring and coordinated decisions across the perioperative period.
A typical assessment combines a medical history, medication and allergy review, physical examination, targeted tests, fasting instructions, and informed consent. Clinicians interpret these elements together rather than relying on a single finding. The resulting assessment identifies risks, highlights conditions needing optimization, and provides information for coordinating anesthesia, surgery, and recovery.
Findings may prompt changes when they reveal a condition or risk that could affect safe surgery, anesthesia, or recovery. Examples supported by the assessment include unmanaged chronic disease, infection, nutritional concerns, medication issues, or relevant allergies. Clinicians use the combined information to determine whether treatment, further coordination, or a modified plan is needed before proceeding.
Preoperative care creates a shared understanding of the patient’s risks, health concerns, medications, allergies, and expected management needs. Communicating this information among the surgical, anesthesia, nursing, and family teams helps guide recovery planning. As a result, postoperative monitoring can reflect identified risks and remain connected to decisions made before the operation.