Subjective and objective measures of hot flashes
1Department of Anthropology, UMass Amherst, Amherst, Massachusetts, 01003.
Summary
Hot flashes, common during menopause, involve the body's heat response. Objective measures like skin conductance correlate well with subjective reports, especially in lab settings.
Area of Science:
- Physiology
- Menopause Research
- Biomedical Measurement
Background:
- Hot flashes affect up to 75% of women during menopausal transition.
- Physiological mechanisms involve heat dissipation response, potentially linked to hypothalamic activity and declining estrogen.
- Cross-population variations in self-reported hot flashes exist, complicated by study design differences.
Purpose of the Study:
- To review the physiology of hot flashes.
- To describe methods for examining hot flashes via subjective and objective measurements.
- To explore hot flashes as a model for studying experiences assessed by both self-report and biometrics.
Main Methods:
- Subjective assessment using diaries for timing and severity, and body diagrams for heat/sweating patterns.
- Objective measurement of physiological changes: heart rate, finger blood flow, respiratory exchange ratio, skin temperature, core body temperature.
- Utilizing sternal skin conductance as a key objective measure, highly correlated with subjective reports.
Main Results:
- Sternal skin conductance shows high concordance (near 100%) with subjective hot flash reports in laboratory settings.
- Ambulatory monitoring of hot flashes reveals lower concordance between subjective reports and objective measures compared to lab settings.
- Physiological changes like increased heart rate and skin temperature objectively indicate hot flashes.
Conclusions:
- Hot flashes are a physiological response to declining estrogen, measurable through various subjective and objective methods.
- Laboratory-based sternal skin conductance offers reliable objective measurement of hot flashes.
- The study of menopausal hot flashes serves as a valuable model for understanding dual self-report and biometric assessments.
Related Concept Videos
01:23Assessment of the Cardiovascular System I: Subjective Data
A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
01:14Assessing Body Temperature - Oral
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
01:27Assessing Body Temperature - Rectal
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
01:28Menopause
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
01:19Assessing Body Temperature - Temporal Artery
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's forehead...
01:17Assessment of the Gastrointestinal System I: Subjective Data
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...