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Medical Malpractice: Proving Deviation from the Standard of Care

Denning Law Firm, LLC June 11, 2026

When seeking medical treatment, you place a tremendous amount of trust in the professionals responsible for your care. Whether you are undergoing surgery, receiving emergency treatment, managing a chronic illness, or simply attending a routine appointment, you expect your healthcare providers to act with competence and sound judgment.  

Unfortunately, there are situations in which a medical professional's actions fall below accepted standards and cause serious harm. When that happens, proving medical malpractice requires more than just showing that a mistake occurred. Instead, you will need to demonstrate that your healthcare provider deviated from the applicable standard of care. 

At Denning Law Firm, LLC, we represent individuals and families who have suffered harm due to medical negligence. Medical malpractice cases often involve life-changing injuries, mounting medical expenses, lost income, and uncertainty about the future. Our attorneys are dedicated to helping you understand your rights, evaluate your options, and pursue accountability when your healthcare provider fails to meet their professional obligations. 

Located in Overland Park, Kansas, we serve clients throughout Leawood, Olathe, Shawnee, and Lenexa, Kansas, as well as Kansas City, Missouri. Contact us today to explore how you can prove a deviation from the standard of care in a medical malpractice case.

What Is the Standard of Care? 

The standard of care refers to the level of skill, judgment, and treatment that a reasonably competent healthcare professional would provide under similar circumstances. It serves as the benchmark against which a provider's conduct is measured in a medical malpractice claim. 

The standard of care does not require perfection. Medicine involves judgment calls, and not every poor outcome results from negligence. Patients may experience complications even when healthcare providers act appropriately. However, when a provider's actions differ from what a reasonably careful practitioner would have done in the same situation, questions about malpractice may arise. 

The standard of care can vary depending on factors such as the provider's specialty, the patient's medical condition, available treatment options, and the circumstances of care. A surgeon may be held to a different standard than a family physician, and emergency room decisions may be evaluated differently than treatment provided during a scheduled office visit. Understanding the applicable standard in a particular situation is often the foundation of a successful medical malpractice case. 

The Importance of Proving a Deviation

In every medical malpractice claim, it is not enough to show that an injury occurred. The law requires you to prove that your healthcare provider failed to meet the accepted standard of care and that this failure directly contributed to your injuries. Proving a deviation from the standard of care is often one of the most heavily contested aspects of a medical malpractice lawsuit. 

For example, if you suffered a serious infection following surgery, the existence of the infection alone does not automatically establish negligence. Instead, the question becomes whether the surgeon, hospital staff, or other providers acted in a manner consistent with accepted medical practices. If proper procedures were followed and the infection developed despite appropriate care, malpractice may not exist. On the other hand, if basic safety protocols were ignored, you may have grounds for a claim. 

Common Situations That May Involve Deviations from the Standard of Care 

Medical malpractice can arise in many different healthcare settings. Depending on the circumstances of your medical care, some common situations where malpractice may occur include the following:

  • Misdiagnosis and delayed diagnosis: Claims that your provider failed to recognize symptoms that another reasonably competent practitioner would have identified.

  • Surgical errors: Mistakes during procedures, operating on the wrong site, or failing to monitor a patient appropriately after surgery. 

  • Medication errors: Prescribing the wrong drug, administering incorrect dosages, or failing to identify dangerous interactions.

  • Birth injuries: Failures to respond appropriately to signs of fetal distress or complications during labor and delivery.

  • Hospital negligence: When healthcare facilities fail to maintain appropriate policies, staffing levels, or patient safety practices. 

To prove malpractice, our Kansas City medical malpractice lawyers can review your medical records, treatment decisions, and the circumstances surrounding your care to determine whether the provider's actions fell below accepted standards. 

The Role of Medical Records 

Medical records frequently serve as key evidence in a malpractice claim. These records document your symptoms, diagnoses, test results, treatment plans, medications, physician observations, and communications among healthcare providers. 

These records often reveal whether important information was overlooked, whether warning signs were ignored, or whether treatment decisions aligned with accepted medical practices. Your medical records can also establish timelines that help explain how events unfolded and how delays or mistakes may have affected the patient's outcome. At Denning Law Firm, LLC, we will carefully examine your medical records and other evidence to identify potential deviations from accepted standards of care.

Why Expert Testimony Is Often Necessary 

Medical malpractice cases frequently involve issues that are unfamiliar to those outside the healthcare profession. Because jurors and judges may lack specialized medical knowledge, expert testimony is often necessary to explain the standard of care and whether it was violated. 

Medical experts will review your records, analyze treatment decisions, and provide opinions regarding how a reasonably competent provider would have acted under similar circumstances. These opinions often help establish whether a deviation occurred and whether it contributed to your injuries. 

Medical Malpractice Laws in Kansas and Missouri

Kansas has unique rules governing medical malpractice claims. Before some cases proceed through litigation, they may be reviewed by a medical malpractice screening panel. While participation is not mandatory in every case, these panels can provide an early evaluation of whether malpractice occurred. 

Kansas also follows strict standards regarding professional negligence, causation, and damages that must be satisfied before compensation can be awarded. Understanding these requirements is an important part of evaluating any potential medical malpractice case. 

Missouri law also imposes specific requirements for medical malpractice claims. In many cases, you must present an affidavit from a qualified healthcare provider stating that your provider failed to use the level of care that a reasonably careful provider would have exercised under similar circumstances. This underscores the importance of professional medical opinions when evaluating malpractice allegations. 

Both Kansas and Missouri impose strict filing deadlines that may affect your ability to pursue compensation. Because these deadlines can vary depending on the circumstances of your case, it's essential to seek legal advice as soon as possible after discovering a potential injury. 

Contact Our Medical Malpractice Attorneys Serving Kansas and Missouri

At Denning Law Firm, LLC, our attorneys, William Denning and Paeten Denning, believe you deserve dedicated representation and a legal team willing to fight for the compensation you need after a medical malpractice injury. Our attorneys have built their practice on teamwork, determination, and a commitment to helping people when they need it most.

Located in Overland Park, Kansas, we serve clients throughout Leawood, Olathe, Shawnee, and Lenexa, Kansas, as well as Kansas City, Missouri. If you believe you have suffered an injury due to medical malpractice, contact us today to schedule a consultation.

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