Source: Jennifer A. Ouellet and Jaideep Talwalkar; Yale School of Medicine
To meet the needs of older adults, all health professionals should be well acquainted with the history and physical examination considerations unique to this population. Physical examination plays an important role in the older patient to detect physiologic changes of aging, risk factors, and signs of pathology. While most of the general principles of the standard examination for adults apply to older patients, there are additional specific considerations. For example, focused examinations of cognitive and functional status are critical, as are assessments of hearing, vision, nutritional status, and the nervous system. This video will provide an overview of key aspects of the physical examination in older adults, including the use of standardized tools such as the 4 M's, the Timed Get Up and Go, and the Mini-Cog.
The population of older adults, or persons aged 65 and older, is rapidly increasing nationally and globally. Regardless of the area of practice entered, to optimize the care of patients, it is critical to be aware of unique considerations for this population. To optimize the care of older adults, the John A. Hartford Foundation and The Institute for Healthcare Improvement have partnered to create the Age-Friendly Health System initiative. This initiative aims to disseminate evidence-based care models and frameworks of decision-making that embody the 4 M's of Geriatric Medicine (What Matters, Mobility, Medications, and Mentation). Here, details of specific considerations in the older adult with reference to the 4 M's will be demonstrated. While a comprehensive evaluation of the older adult includes physical exam considerations in each of the 4 M's below, each visit does not need to include every portion of the below protocol.
What Matters: Studies have shown that older adults vary in the health outcomes (preserving function, managing symptoms, or maximizing longevity) that matter most to them and the interventions they will accept to achieve them. As part of a comprehensive evaluation of the older adult, help the patient identify the health outcomes they most want to achieve. Focused evaluation of their health conditions and physical examination can help guide patients on what outcomes are realistic and achievable. This information can assist decision-making over time. To ensure that patients, including older adults, receive the care that best aligns with their individual goals and healthcare preferences, they should consider their goals and values, identify a healthcare surrogate decision-maker, and document their wishes. Healthcare systems often have forms and tools available to clinicians. Some evidence-based resources include the Patient Priorities Care website and the Prepare for Your Care website. These tools help patients and their caregivers consider what matters most to them in their healthcare and who should help them make decisions.
Medication: Evaluation of a patient's medication list, including over-the-counter medications, is essential to help guide focused physical examination and clinical decision-making. Half of the patients over 65 years of age take five or more medications daily, which is the traditional definition of "polypharmacy." With increasing numbers of medications, there is a high risk for drug-drug interactions, drug-disease interactions, and potentially inappropriate medications or doses. Studies of polypharmacy outcomes have found associations with falls, adverse events, hospitalizations, cognitive and functional decline, and mortality. The physical exam should include ongoing assessment for medications' common and severe side effects (for example, orthostatic hypotension with anti-hypertensives, bradycardia with B-blockers, bruising with aspirin). A helpful resource to identify potentially harmful medications in older adults is the Beers List, a list of medications categorized by the mechanism of action. There are multiple validated strategies to help with the consideration of deprescribing potentially inappropriate and harmful medications when identified.
Mentation: Assessment of cognitive function is a standard part of the physical examination in older adults. Though U.S. Preventive Services Task Force (USPSTF) does not recommend for or against screening for cognitive impairment as part of the annual wellness visit, the impact of cognitive impairment can be substantial, and screening should be considered in key clinical situations. According to the Alzheimer's Association, more than 5 million people in the United States are diagnosed with Alzheimer's Dementia, which is currently the sixth leading cause of death and the most common form of dementia. Screening for cognitive impairment can improve the detection of dementia at an early phase and help patients and families increase services within the home and improve safety. Many cognitive tests are available for screening and diagnosis of underlying cognitive impairment. A widely used and validated tool is the Mini-Cog. Additional cognitive testing modalities are available for detailed cognitive assessment and the diagnosis of cognitive impairment.
Mobility: Impairment in mobility is closely related to the risk of falls, which substantially impact older adults. Approximately 30% of persons over 65 years of age fall annually, and half of those falls are recurrent. Ten percent of falls result in serious injury, including fractures (common fractures include the hip, rib, spine, and clavicular), subdural hematoma, or soft tissue injuries. Ten percent of all emergency room visits in older adults are related to falls, and six percent of emergency hospitalizations in older adults are related to falls. Identifying and reducing fall risk factors is a crucial element of the physical examination in older adults. Risk factors for falls in older adults include advancing age (greater than 75 years of age), specific medical conditions (arthritis, neuropathy, anemia, vision impairment, orthostatic hypotension, restricted mobility requiring use of an assistive device, cognitive impairment), greater than four prescription medications, and impairment in balance, gait, and muscle strength. In addition to standard assessments of range of motion, strength, and sensation, specific methods to evaluate mobility in older adults include chair stands and the Timed Up and Go, which are validated tests to evaluate impaired mobility and risk of falls. In addition, while performing these tests, observation should be made of the patient's gait and use of an assistive device.
1. General considerations in the older adult
2. What matters
3. Medication
4. Mentation
5. Mobility
Normative Range | Abnormal Test | |||||||||||||||||||||||||
Pulse Pressure (systolic blood pressure-diastolic blood pressure) | 40 mmHg | >40 mmHg may indicate stiff vasculature 2/2 atherosclerosis | ||||||||||||||||||||||||
Orthostatic Vitals | Systolic Blood Pressure Standing < 10 mmHg than Systolic Blood Pressure Sitting OR Diastolic Blood Pressure Standing < 10 mmHg than Diastolic Blood Pressure Sitting OR Patient symptoms of light-headedness after standing for 1 minute |
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Timed Up and Go (TUG) | Normative Reference (Mean time): 60-69 yr – 8.1 sec 70-79 yr – 9.2 sec 80-99 yr – 11.3 sec |
A total time to complete the TUG greater than or equal to 14 seconds is associated with an increased risk of falls. |
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Chair Stands | Patients who are able to less than the average number of chair stands for their age and gender are at increased risk of falls.
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Mini-Cog | 4 or 5 | A score of 0-3 is considered a positive screen for cognitive impairment and should prompt additional testing. |
Gait Observation: Abnormal gait patterns can indicate underlying pathology and may predispose the patient to falls. Normal gait changes in aging can include decreased overall gait speed, decreased stride length, increased stride width, and decreased step height without shuffling.
Assist Device Use Evaluation: While observing the patient use their assist device, note which side they are using a single-sided device (that is, cane). They should be using the device on the opposite side from the affected side or injury. For example, if the patient has osteoarthritis affecting their left knee, they should be using the cane in their right hand. The proper height for an assist device is at the wrist crease while standing with the arm dangling on the side or with the elbow flexed ~20º when holding the device.
1. General considerations in the older adult
2. What matters
3. Medication
4. Mentation
5. Mobility