OTHM Level 7 Diploma in Clinical Aesthetic Injectable Therapies

OTHM-QUALIFICATIONS

vocational

This subtopic covers the use of botulinum toxin type A (BoNT-A) for treating primary focal hyperhidrosis, a condition of excessive sweating beyond thermoregulatory needs, commonly affecting axillae, palms, and soles. Learners must master patient assessment, including diagnosis via Minor's iodine-starch test and grading severity, to determine suitability for injectable therapy. The focus is on safe, evidence-based injection techniques, anatomical landmarks, dilution protocols, and management of potential complications such as injection site pain, haematoma, or compensatory sweating, ensuring competence in non-facial aesthetic procedures.

Objectives

Exam Tips

Pitfalls

Key Terms

Mark Points

What You Need to Demonstrate

Key skills and knowledge for this topic

Award credit for accurately identifying hyperhidrosis subtype (primary focal vs. secondary), including relevant history and diagnostic tests (e.g., Minor test, gravimetry) to confirm BoNT candidacy.
Expect demonstration of safe injection technique: correct dilution, anatomical landmarks for axillary/palmar/plantar sites, needle depth, and spacing of injections to avoid diffusion into unintended muscles.
Look for evidence of comprehensive adverse event management plans, including immediate recognition of complications (e.g., anaphylaxis, hematoma, muscle weakness) and appropriate escalation/referral pathways.

Marking Points

Key points examiners look for in your answers

Award credit for accurately identifying hyperhidrosis subtype (primary focal vs. secondary), including relevant history and diagnostic tests (e.g., Minor test, gravimetry) to confirm BoNT candidacy.
Expect demonstration of safe injection technique: correct dilution, anatomical landmarks for axillary/palmar/plantar sites, needle depth, and spacing of injections to avoid diffusion into unintended muscles.
Look for evidence of comprehensive adverse event management plans, including immediate recognition of complications (e.g., anaphylaxis, hematoma, muscle weakness) and appropriate escalation/referral pathways.

Examiner Tips

Expert advice for maximising your marks

💡In practical assessments, always follow a structured patient assessment framework: history, examination, diagnostic testing, and documented consent before preparing the injectable.
💡Be prepared to answer scenario-based questions on managing adverse events; use the 'recognise, respond, review, refer' model to structure your answer and show systematic thinking.
💡For written assignments, reference current clinical guidelines (e.g., from the British Association of Dermatologists) and demonstrate understanding of off-license use in non-facial areas, including rationale and evidence.

Common Mistakes

Pitfalls to avoid in your exam answers

Failing to differentiate primary hyperhidrosis from secondary causes (e.g., endocrine disorders, medications), leading to inappropriate treatment with BoNT.
Incorrect dosage calculation or dilution errors, such as using too high a dose for axillary treatment causing weakening of shoulder girdle muscles.
Inadequate consent process: not discussing potential temporary compensatory sweating or need for repeat treatments, leading to patient dissatisfaction and complaints.

Key Terminology

Essential terms to know

1. Be able to recognise the presenting condition of hyperhidrosis amenable to BoNT injectable therapies. 2. Be able to demonstrate safe clinical practice in the delivery of BoNT therapies for hyperhidrosis.3. Be able to propose appropriate management pathways for a given presenting adverse event or complication.

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Practice questions tailored to this topic

OTHM Level 7 Diploma in Clinical Aesthetic Injectable Therapies

What You Need to Demonstrate

Marking Points

Examiner Tips

Common Mistakes

Key Terminology

Ready to test yourself?

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