EC Follow-Up & Survival Analysis 3 — Questions and Answers
Question 1: In electrolysis survival analysis, the term 'survival rate' of a follicle refers to what?
- The percentage of treated follicles that successfully regrow hair (Correct answer)
- The proportion of follicles that remain permanently destroyed after treatment
- The client retention rate over a full treatment series
- The percentage of hairs in anagen at the time of treatment
Correct answer: The percentage of treated follicles that successfully regrow hair
In this context, follicle 'survival' means it retains the ability to regrow hair, so a high follicle survival rate indicates treatment was less effective.
Question 2: Which hair cycle phase is associated with the highest risk of follicle survival (regrowth) after electrolysis?
- Telogen (Correct answer)
- Anagen
- Catagen
- Exogen
Correct answer: Telogen
Follicles in telogen have a retracted dermal papilla that may not receive a lethal energy dose, making them more likely to survive treatment and regrow.
Question 3: A client has completed 20 sessions over 18 months. How should an electrologist objectively evaluate the overall treatment outcome?
- Compare hair density photographs from the start of treatment with current density (Correct answer)
- Count the number of insertions performed across all sessions
- Rely solely on the client's subjective satisfaction report
- Measure the diameter of the largest remaining hair
Correct answer: Compare hair density photographs from the start of treatment with current density
Standardized photographs taken at baseline and at intervals provide objective, comparable data on hair density reduction over the treatment series.
Question 4: What is the primary reason why a complete analysis of treatment permanency cannot be made until at least 12 months after the final session?
- All hair follicles must have had the opportunity to cycle through anagen at least once (Correct answer)
- Insurance companies require a 12-month waiting period
- Scar tissue takes 12 months to fully mature
- Electrolysis energy dissipates slowly and continues working for a year
Correct answer: All hair follicles must have had the opportunity to cycle through anagen at least once
Hair follicles on different cycle timelines may not enter anagen—and thus show regrowth—until a year has passed, making any earlier permanency claim premature.
Question 5: A client on hormone replacement therapy (HRT) shows higher-than-expected regrowth rates at follow-up. What is the most likely explanation?
- HRT can stimulate vellus follicles to transition to terminal hairs, creating new growth (Correct answer)
- HRT inhibits the absorption of electrical current into the follicle
- The client is likely applying topical androgens to the treated area
- HRT specifically reactivates permanently destroyed follicles
Correct answer: HRT can stimulate vellus follicles to transition to terminal hairs, creating new growth
HRT, especially androgen therapy, can activate previously dormant vellus follicles, producing apparent 'regrowth' that is actually new terminal hair growth.
Question 6: Which factor most directly influences the percentage of follicles permanently destroyed in a single session?
- Percentage of hairs in anagen at the time of treatment (Correct answer)
- Room temperature during the session
- Duration of the client consultation
- Brand of epilator used
Correct answer: Percentage of hairs in anagen at the time of treatment
Anagen hairs have the deepest, most active follicles with the papilla in close proximity to the probe tip, making them the most susceptible to permanent destruction.
Question 7: If a follow-up assessment shows a 30% regrowth rate after 6 months, what should the electrologist consider adjusting for future sessions?
- Increase treatment intensity or probe duration to deliver a more effective dose (Correct answer)
- Switch to a different hair removal method entirely
- Reduce session frequency to allow more hairs to reach telogen
- Discontinue treatment as the method is clearly ineffective
Correct answer: Increase treatment intensity or probe duration to deliver a more effective dose
A regrowth rate higher than expected suggests the current dosage is insufficient to permanently destroy follicles, warranting a reassessment of energy settings or timing.
EC Follow-Up & Survival Analysis 3
In electrolysis survival analysis, the term 'survival rate' of a follicle refers to what?