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Sites of insulin

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insulin AND injection site

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ADA insulin injection sites abdomen thigh upper arm buttock guidance

Sites for subcutaneous insulin injection:
  1. Abdomen - preferred site; inject at least 2 inches (5 cm) away from the umbilicus.
  2. Outer upper arm - posterolateral aspect.
  3. Front and outer thigh - avoid the area near the knee or groin.
  4. Upper outer buttock/hip area.
Use the same general body region at similar times each day if consistent absorption is needed, but rotate individual injection points within that region. Avoid injecting into scars, bruises, inflamed skin, or lumps/lipohypertrophy. Repeated injections at one point can cause fatty-tissue hypertrophy and unpredictable absorption. [Katzung's Basic and Clinical Pharmacology, 16th Edition, injection-site lipodystrophy]

3h in HiV

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HIV AND isoniazid rifapentine

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WHO 3HP HIV tuberculosis preventive treatment isoniazid rifapentine

3H is not a standard TB-preventive therapy regimen for people with HIV.
  • H = isoniazid
  • 3H would mean isoniazid alone for 3 months, which is generally not recommended as TB preventive treatment in HIV.
Common regimens in HIV are:
  • 3HP: isoniazid + rifapentine, once weekly for 3 months (12 doses). WHO currently lists this as the preferred option for eligible adults and adolescents with HIV.
  • 3HR: isoniazid + rifampicin, daily for 3 months.
  • 6H or 9H: isoniazid alone, daily for 6 or 9 months.
Exclude active tuberculosis before starting preventive treatment, and check rifamycin interactions with the person’s ART regimen. WHO HIV management update notes that 3HP is preferred in eligible adults and adolescents living with HIV.

In HIV

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Do you mean “3H regimen in HIV” for tuberculosis preventive treatment, or the “3 H’s” associated with HIV?

Yes

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I need the exact one, as both are different.
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What does “3H” refer to here?

Sites for subcutaneous insulin injection:
  1. Abdomen - preferred site; inject at least 2 inches (5 cm) away from the umbilicus.
  2. Outer upper arm - posterolateral aspect.
  3. Front and outer thigh - avoid the area near the knee or groin.
  4. Upper outer buttock/hip area.
Use the same general body region at similar times each day if consistent absorption is needed, but rotate individual injection points within that region. Avoid injecting into scars, bruises, inflamed skin, or lumps/lipohypertrophy. Repeated injections at one point can cause fatty-tissue hypertrophy and unpredictable absorption. [Katzung's Basic and Clinical Pharmacology, 16th Edition, injection-site lipodystrophy]3H is not a standard TB-preventive therapy regimen for people with HIV.
  • H = isoniazid
  • 3H would mean isoniazid alone for 3 months, which is generally not recommended as TB preventive treatment in HIV.
Common regimens in HIV are:
  • 3HP: isoniazid + rifapentine, once weekly for 3 months (12 doses). WHO currently lists this as the preferred option for eligible adults and adolescents with HIV.
  • 3HR: isoniazid + rifampicin, daily for 3 months.
  • 6H or 9H: isoniazid alone, daily for 6 or 9 months.
Exclude active tuberculosis before starting preventive treatment, and check rifamycin interactions with the person’s ART regimen. WHO HIV management update notes that 3HP is preferred in eligible adults and adolescents living with HIV.Do you mean “3H regimen in HIV” for tuberculosis preventive treatment, or the “3 H’s” associated with HIV?I need the exact one, as both are different.Please specify one:
  1. 3 Hs in HIV
  2. 3H regimen for TB prevention in HIV
  3. Both

Explain the 3 Hs associated with HIV

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"3 Hs" associated with HIV

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HIV AND clinical manifestations

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"three Hs" HIV medical mnemonic

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The 3 Hs associated with HIV are clinical clues that should prompt HIV testing:
  1. Herpes zoster
    • Shingles, particularly if it occurs in a person younger than 50 years, is recurrent, severe, multidermatomal, or disseminated.
  2. Hairy leukoplakia
    • White, corrugated, non-scrapable patches on the lateral borders of the tongue.
    • Caused by Epstein-Barr virus and associated with immunosuppression.
  3. Herpes simplex infection
    • Severe, recurrent, extensive, atypical, or chronic HSV infection, especially lesions persisting more than 1 month, suggests advanced immunosuppression.
These signs are not diagnostic of HIV, but they are important clinical indicators for offering an HIV test and assessing immune status. Textbook of Family Medicine, 9e lists herpes zoster in people under 50 and oral hairy leukoplakia as HIV-testing clues; Fitzpatrick’s Dermatology notes chronic HSV and disseminated herpes zoster among manifestations of advanced HIV disease.
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