The Exchange

Commentary and Observations from
the Medical Front Lines

Mary Knudtson, DNSc, NP, FAAN

Mary Knudtson, DNSc, NP, FAAN

  • Professor of Clinical Nursing
  • University of California, Irvine
  • Irvine, California
  • Nurse Practitioner
  • JumpstartMD
  • Walnut Creek, California
Heat and Health

Heat and Health

With the recent record high temperatures in the Pacific Northwest, I was surprised to hear the estimated death toll from one of the more recent heat waves was 800. Extreme heat can lead to heat stroke, heat cramps, heat exhaustion, dehydration, and death; anyone can be at risk, but some are more vulnerable, including pregnant women, people with heart or lung conditions, young children, older adults, athletes, and outdoor workers. With all of the hot weather extremes that many parts of the US... Continue Reading

Filed under: Public Health

CDC Data and Clinical Considerations for Additional COVID Vaccine Doses in Immunocompromised People

CDC Data and Clinical Considerations for Additional COVID Vaccine Doses in Immunocompromised People

There has been discussion of whether people with immunocompromising conditions should receive a 3rd dose of the mRNA COVID vaccine. The CDC presented at the... Continue Reading

Filed under: Infectious Diseases, Preventive Medicine, Public Health

Should We Be Screening all Patients Over 50 for Age-Related Macular Degeneration?

Should We Be Screening all Patients Over 50 for Age-Related Macular Degeneration?

A growing public health issue for older adults is impaired sight. In fact, in 2011, 12% of US adults aged 65 to 74 years reported trouble with their vision,... Continue Reading

Filed under: Miscellaneous, Preventive Medicine

New in April: Open Notes Law Goes Into Effect

New in April: Open Notes Law Goes Into Effect

The 21st Century Cures Act, passed by Congress in 2016, has gone into effect in April 2021. This gives patients the right to immediate electronic access to t... Continue Reading

Filed under: Health Policy and Trends, Practice Management/Career

Diet and Depression: Is There a Link?

Diet and Depression: Is There a Link?

Depression and anxiety are the most common mental health conditions worldwide and a leading cause of disability. Lately, there has been a renewed interest in... Continue Reading

Filed under: Psychiatry

What Can You Tell Patients After Their Second COVID Vaccination?

What Can You Tell Patients After Their Second COVID Vaccination?

Patients are beginning to ask what they can safely do after they have received both doses of the currently approved COVID vaccines. What do the experts and t... Continue Reading

Filed under: Preventive Medicine, Public Health

Anxiety and Depression Amid COVID

Anxiety and Depression Amid COVID

Lately, we've been hearing a lot about increases in anxiety and depression in the United States due to the COVID-19 pandemic. I was curious about what data w... Continue Reading

Filed under: Health Policy and Trends, Psychiatry

The Future of the Affordable Care Act

The Future of the Affordable Care Act

We've been hearing a lot about the Affordable Care Act (ACA) and whether the Supreme Court will overturn the law or parts of the law. The Kaiser Family Found... Continue Reading

Filed under: Health Policy and Trends, Practice Management/Career

Climate Change and Health: Let’s Take a Stand to Save Lives!

Climate Change and Health: Let’s Take a Stand to Save Lives!

Both the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) agree that climate change has a significant negative effect... Continue Reading

Filed under: Miscellaneous, Public Health

Protecting Patients From Unsafe Air Quality

Protecting Patients From Unsafe Air Quality

With all of the fires raging in California, many other areas far from them are experiencing poor air quality too. Poor air quality can have both long- and sh... Continue Reading

Filed under: Public Health, Pulmonary Medicine

Silent Hypoxia in COVID-19 Patients

Silent Hypoxia in COVID-19 Patients

Emergency rooms in New York are finding COVID-19 pneumonia in some patients who have no shortness of breath. Clinicians have reported that when they did x-ra... Continue Reading

Filed under: Infectious Diseases, Pulmonary Medicine

Asthma and COVID-19

Asthma and COVID-19

The early data on mortality from COVID-19 infections are showing that asthma is not one of the top risk factors. The top ten COVID-19 comorbidities (in rank... Continue Reading

Filed under: Infectious Diseases, Pulmonary Medicine

Intermittent Fasting: Is it Hype or Is There Science Behind It?

Intermittent Fasting: Is it Hype or Is There Science Behind It?

Intermittent fasting (IF) is a form of time-restricted fasting that involves consuming foods during a specific time window and fasting for the remaining hour... Continue Reading

Filed under: Health Policy and Trends, Miscellaneous

Consent for Invasive Exams While Under Anesthesia?

Consent for Invasive Exams While Under Anesthesia?

There was an interesting article in the New York Times called "She Didn't Want a Pelvic Exam. She Received One Anyway. Continue Reading

Filed under: Health Policy and Trends, Miscellaneous

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