Sixty-Year-Old Female Presents as Lethargic

She has taken a sleeping pill & feels cold

 

 
 
 

Dennis Edgerly, EMT-P | | Wednesday, May 16, 2012


The call comes in from a third party. A 60-year-old female has a son who lives in an adjacent town. The son contacted EMS because he’s concerned about his mother. She has been depressed over the past several months, and this morning, he’s unable to contact her by phone or text message. He’s requesting a welfare check on his mother. When you arrive on the scene, the police have gained access. They’re talking with a female who’s lying on the couch covered with several blankets.

The patient tells you her name is Abigail. She seems lethargic but answers your questions and has no complaint other than being cold. She tells you she didn’t hear her phone this morning. She took a sleeping pill this past evening and didn’t wake up until she heard the police officers at the door. She still feels tired. Your physical exam reveals a conscious, lethargic female in her 60s. Her skin feels dry and cold. Looking at her face, you note her eyelids appear puffy.

Her heart rate is 56 and blood pressure is 130/90. Respirations are 12 and uncompromised. Breath sounds are clear in all fields bilaterally. She admits to feeling depressed for several months and states she’s cold all of the time and has no energy. She denies any suicidal thoughts or gestures. She’s certain she only took one sleeping pill and states she takes no prescription or over-the-counter medications, or herbal supplements on a regular basis.

Your partner applies oxygen via nasal cannula at 2 LPM. You work to establish an IV, which you run at a TKO rate. Her blood glucose level is 90 mg/dL. The cardiac monitor reveals sinus bradycardia. The patient is moved to the stretcher and is covered to keep her warm. Transport to the emergency department is uneventful with no change in patient presentation other than her dozing off. The patient is later diagnosed with hypothyroidism.

Hypothyroidism
Hypothyroidism is a condition with lower than normal levels of triiodothyronine (T3) and thyroxine (T4) circulating in the blood. The most common cause of hypothyroidism in the U.S. is Hashimoto’s disease, which is an autoimmune disease affecting the thyroid gland. Other causes can be related to pituitary gland tumors, radioiodine therapy and such drugs as Lithium. Some cases are idiopathic, meaning there’s no identifiable cause. Hypothyroidism has a broad range of symptoms and is seen in women three to 10 times more frequently than in men. T3 and T4 are important catalysts for several cellular functions relating to base metabolic rate. Thus, when levels of T3 and T4 are low, metabolism slows. Signs and symptoms of hypothyroidism include cold intolerance, depression, mental dullness and edema. Changes can also be noted in the texture of the skin and hair.

In some cases, hair loss can be a sign. Sinus bradycardia is the most common rhythm seen with hypothyroidism and blood pressures can be normal, decreased or slightly elevated. Because hypothyroidism slows metabolism, the body’s ability to metabolize drugs is also slowed. This is especially noted with sedatives. It’s easy for a person with hypothyroidism to accidentally overdose because of the body’s decreased ability to metabolize and eliminate medications. Extreme cases of hypothyroidism cause a condition known as myxedema coma. Myxedema coma can present with a decrease in body temperature, slowed respirations, hypotension and unconsciousness.

EMS management of patients with hypothyroidism is supportive. Ensure respiratory efforts are adequate; apply oxygen or ventilate as necessary. Vascular access is indicated. Fluid boluses may help if the patient is hypotensive. Bradycardic rhythms may be treated if the patient is hypotensive. Long-term management of hypothyroidism is aimed at the replacement of thyroid hormones. Common medications include Levothyroxine, which is a synthetic T4, and Cytomel, which is a synthetic T3.

Hypothyroidism is more common than hyperthyroidism, which we discussed a couple of months ago. The presentation is subtle and onset is slow. Other considerations or comorbid factors to be considered include overdose, stroke and sepsis.

Resources
• Guyton, Hall: Textbook of Medical Physiology, Tenth Edition. WB Saunders: 2000.
• Marx, Hockberger, Walls: Rosen’s Emergency Medicine Concepts and Clinical Practice, Sixth Edition. Mosby Elsevier : St. Louis, 2006.
 




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Related Topics: Patient Care, Special Patients, Hypothyroidism, geriatric patients, Dennis Edgerly

 
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Dennis Edgerly, EMT-Pbegan his EMS career in 1987 as a volunteer firefighter EMT. Currently he's the paramedic education coordinator for the paramedic education program at HealthONE EMS. Contact him at Dennis.Edgerly@Healthonecares.com.

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