Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Serum Laboratory Studies, Stool Test, Breath Test01:30

Serum Laboratory Studies, Stool Test, Breath Test

819
Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
819
Testes: Histology01:27

Testes: Histology

2.9K
A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
2.9K
Complementation Tests00:49

Complementation Tests

6.1K
A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes.
Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
6.1K
Testes: Gross Anatomy01:19

Testes: Gross Anatomy

5.9K
The testes, also known as testicles, are the male gonads. They are housed within the scrotum, a sac-like structure located beneath the penis. The scrotum's primary role is to regulate the temperature of the testes, which is crucial for sperm production.
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
5.9K
Significance Testing: Overview01:04

Significance Testing: Overview

11.6K
Significance testing is a set of statistical methods used to test whether a claim about a parameter is valid. In analytical chemistry, significance testing is used primarily to determine whether the difference between two values comes from determinate or random errors. The effect of a particular change in the measurement protocol, analyst, or sample itself can cause a deviation from the expected result. In the case of a suspected deviation/outlier, we need to be able to confirm mathematically...
11.6K
Testing Water Quality01:14

Testing Water Quality

381
When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
381

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Preoperative considerations for nonoperating room anesthesia.

Current opinion in anaesthesiology·2026
Same author

Perioperative management of patients taking sodium-glucose cotransporter 2 inhibitors: Society for Perioperative Assessment and Quality Improvement (SPAQI) multidisciplinary consensus statement.

British journal of anaesthesia·2026
Same author

Comparison between the automated TEG®6s and viscoelastic analyzer Haema T4.

Korean journal of anesthesiology·2026
Same author

Sex differences in surgical patients with preoperative iron deficiency anemia.

Transfusion·2026
Same author

Behavioral nudges and targeted education as sustainability strategies to reduce hazardous waste generation in intensive care and perioperative settings: a prospective interventional study.

Journal of anesthesia, analgesia and critical care·2026
Same author

Patient Perspectives on Preoperative Code Status Discussions: A Qualitative Analysis.

Journal of pain and symptom management·2026
Same journal

Outpatient Anesthesia in 2026: Scaling Care, Advancing Safety, Shaping the Future.

Anesthesiology clinics·2026
Same journal

Ambulatory Anesthesia: How Far Can We Go?

Anesthesiology clinics·2026
Same journal

Perioperative Management of Patients on Medication for Opioid Use Disorder Undergoing Ambulatory Surgery: Clinical Considerations for Anesthesiologists.

Anesthesiology clinics·2026
Same journal

Applying the 2024 American Heart Association/American College of Cardiology Joint Committee on Clinical Practice Guidelines for Cardiac Evaluation and Managment of Patients Having Noncardiac Surgeries in an Ambulatory Setting.

Anesthesiology clinics·2026
Same journal

Comprehensive Review of Office-Based Anesthesia Safety 2026 for the Next Generation.

Anesthesiology clinics·2026
Same journal

A Contemporary Review on Health Care Disparities in Pediatric Ambulatory Anesthesia.

Anesthesiology clinics·2026
See all related articles

Related Experiment Video

Updated: Jan 27, 2026

A Personalized 3D-Printed Model for Preoperative Evaluation in Thyroid Surgery
04:42

A Personalized 3D-Printed Model for Preoperative Evaluation in Thyroid Surgery

Published on: February 17, 2023

1.8K

Preoperative Laboratory Testing.

Matthias Bock1, Gerhard Fritsch2, David L Hepner3

  • 1Department of Anesthesia and Intensive Care Medicine, Central Hospital, Via Lorenz Boehler 5, Bolzano 39100, Italy; Department of Anesthesiology, Perioperative Medicine and Intensive Care, Paracelsus Medical University, Muellner Hauptrstrasse 48, Salzburg 5020, Austria.

Anesthesiology Clinics
|March 2, 2016
PubMed
Summary
This summary is machine-generated.

Routine preoperative medical testing is often not cost-effective and rarely impacts surgical plans. Focus on targeted patient history and physical exams for necessary preoperative assessments.

Keywords:
Choosing wiselyCoagulation studiesComplicationElectrocardiogramsPatient safetyPregnancy testingPreoperative testingPreprocedure testing

More Related Videos

Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment
10:22

Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment

Published on: September 17, 2019

12.1K
Experimental Protocol for Using Drosophila As an Invertebrate Model System for Toxicity Testing in the Laboratory
06:00

Experimental Protocol for Using Drosophila As an Invertebrate Model System for Toxicity Testing in the Laboratory

Published on: July 10, 2018

13.4K

Related Experiment Videos

Last Updated: Jan 27, 2026

A Personalized 3D-Printed Model for Preoperative Evaluation in Thyroid Surgery
04:42

A Personalized 3D-Printed Model for Preoperative Evaluation in Thyroid Surgery

Published on: February 17, 2023

1.8K
Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment
10:22

Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment

Published on: September 17, 2019

12.1K
Experimental Protocol for Using Drosophila As an Invertebrate Model System for Toxicity Testing in the Laboratory
06:00

Experimental Protocol for Using Drosophila As an Invertebrate Model System for Toxicity Testing in the Laboratory

Published on: July 10, 2018

13.4K

Area of Science:

  • Medical Diagnostics
  • Health Economics
  • Surgical Planning

Background:

  • Routine preoperative laboratory testing is a common practice.
  • The cost-effectiveness and clinical utility of routine preoperative testing are debated.

Purpose of the Study:

  • To evaluate the cost-effectiveness and clinical significance of routine preoperative testing.
  • To determine if routine tests alter surgical or anesthetic plans or affect perioperative outcomes.

Main Methods:

  • Analysis of the impact of routine preoperative testing on surgical and anesthetic plans.
  • Assessment of the association between abnormal laboratory results and perioperative complications.
  • Evaluation of the consequences of incidental and false positive findings.

Main Results:

  • Routine preoperative testing is unlikely to identify significant abnormalities.
  • Abnormal findings are often false positives, leading to further costly investigations, patient anxiety, and inconvenience.
  • Abnormal results rarely change the surgical or anesthetic plan and show no clear association with perioperative complications.

Conclusions:

  • Routine preoperative testing is not cost-effective.
  • Preoperative testing should be guided by a targeted patient history, physical examination, and the specific surgical procedure.
  • Clinical decisions regarding preoperative testing should prioritize patient-specific factors over universal protocols.