HIV Routine investigation and monitoring of adults Flashcards
For all newly diagnosed HIV-positive patients, what THREE recommendations are made about the initial history?
1) FULL history
2) Identify patients GENDER
3) MENTAL health and SOCIAL history
What THREE aspects comprise a FULL history for all newly diagnosed HIV-positive patients?
1) MEDICAL
2) PSYCHOSOCIAL
3) SEXUAL & REPRODUCTIVE
What FIVE parts of a MEDICAL history for all newly diagnosed HIV-positive patients should there be particular emphasis on at INITIAL assessment?
1) PAST (¤t) MEDICAL HISTORY
2) other MEDICATIONS
3) lifestyle HABITS
4) HIV status of PARTNERS or CHILDREN
5) CONCEPTION issues
What particular aspects of SEXUAL & REPRODUCTIVE health history should be taken for all newly diagnosed HIV-positive patients at INITIAL assessment?
Partner notification
HIV testing for children
Current or past gender based violence
What particular aspects of PSYCHOSOCIAL history should be taken for all newly diagnosed HIV-positive patients at INITIAL assessment?
KNOWLEDGE & BELIEFS of HIV
- infection
- transmission
- treatment
What FIVE specific OBSERVATIONS should be taken for all newly diagnosed HIV-positive patients at INITIAL assessment?
weight height BMI blood pressure waist circumference
Is an examination required of for all newly diagnosed HIV-positive patients at INITIAL assessment?
YES, regardless of symptoms
Why is HIV confirmatory serological testing required?
SAFEGUARD against
- sample mix ups
- specimen contamination
When is HIV confirmatory serological testing NOT required?
IN ADDITION:
HIV viral load
or
typing assay
What THREE results help confirm PRIMARY HIV INFECTION?
1) SEROCONVERTING HIV serology - antigen, no antibody or p24 antigen
2) HIV viral load, and negative serology
3) AVIDITY
If a viral load is UNDETECTABLE at initial HIV diagnosis what must be performed?
REPEAT sample
check for HIV-2
use a DIFFERENT ASSAY
When is viral load HIGHEST in HIV infection?
PRIMARY HIV INFECTION
After primary HIV infection when does viral load decline to a steady state?
FOUR (4) to SIX (6) months
What method is used for resistance testing in HIV?
GENOTYPIC resistance testing
What are the BENEFITS of NEXT GENERATION SEQUENCING?
- detect MINORITY VARIANTS of transmitted drug resistance
- predict HIGHER risk of virological failure with LOW genetic BARRIER drugs
When is INSTI resistance testing recommended at baseline for HIV infection?
- if OTHER baseline RESISTANCE
- PARTNER evidence of INSTI resistance
- if BACKGROUND resistance rate >3%
Why is CD4 count crucial in patients BEFORE starting ART?
- correlates with level of IMMUNE DYSFUNCTION & SUPPRESSION
- dictates URGENCY of ART
What is the CD4 count used to guide?
- risk of INFECTION & CANCER
- CHEMOPROPHYLAXIS for OIs
- when LIVE VACCINATION is safe
CD4 count can fluctuate widely especially in PHI and acute illnesses, what measurement is less variable?
CD4 PERCENTAGE
What is the negative predictive value of HLA-B5701 testing?
99-100%
When MUST HLA-B5701 be checked?
prior to ABACAVIR
Who is HLA-B5701 more prevalent in - Black African or White European?
White European
What is the prevalence of HLA-B5701 in Black Sub-Saharan Africans?
LESS THAN 1%
What is the prevalence of HLA-B5701 in White Europeans?
6.5%
If a person is HLA-B5701 negative, is there any risk fo Hypersensitivity Reaction?
Yes, but lower risk
What THREE hepatitis B tests should be checked in all people with a diagnosis of HIV?
Hepatitis B surface antigen (HBsAg)
Anti-core total antibody (anti-HBc)
Anti- surface antibody (anti-HBs)
If a person with new diagnosis of HIV has HCV antibody POSITIVE, what else needs checked?
HCV VIRAL LOAD
at least TWICE if initially negative
What TWO hepatitis viruses can be vaccinated against?
Hepatitis A
&
B
Why is it important to offer a full STI test to all patients newly diagnosed with HIV?
- increased risk of HIV TRANSMISSION if DETECTABLE viral load, if simultaneous STI
- increase risk of COMPLICATION from STI if HIV +ve
How often is cervical screening recommended for WLW HIV?
Annually
Other than hepatitis what other viruses should be screened for in people newly diagnosed with HIV?
Varicella zoster virus IgG
Measles IgG
Rubella IgG (women of childbearing age)
How should TB be screened for in people newly diagnosed with HIV?
interferon gamma release assay (IGRA)
When should people newly diagnosed with HIV be tested for parasitic infection?
If persistent eosinophilia
>500cells/mL (>0.5x10(9))
AND
relevant travel history
When should toxoplasma serology be checked in people newly diagnosed with HIV?
suspected CEREBRAL INFECTION
or
LOW CD4 and UNABLE to tolerate co-trimoxazole
What tests form the baseline METABOLIC screen in people newly diagnosed with HIV?
FBC
RENAL profile - U&E, eGFR, urinalysis, uPCR
LIVER profile - bilirubin, ALT (or AST), ALP (+GGT & albumin if other abnormal)
BONE profile - calcium, phosphate, (ALP)
LIPID (random) - total cholesterol, LDL, HDL, triglycerides
HbA1c
In newly diagnosed HIV, anaemia, neutropenia &/or thrombocytopenia may be signs of?
Advanced IMMUNOSUPPRESSION
Severe OPPORTUNISTIC infection
MALIGNANCY
What co-infections or opportunistic infection may result in deranged liver function in HIV?
viral HEPATITIS
TB
CMV
CRYPTOSPORIDIUM
What drugs used to treat or prevent OIs in HIV commonly cause deranged liver function?
ANTIMICROBIALS
- rifamycins
- isoniazid
- pyrazinamide
- co-trimoxazole
- fluconazole
- co-amoxiclav
- cephalosporin
When should CARDIOVASCULAR risk assessment be made in people with HIV?
ANNUALLY if
>40
or
significant CVD risk factors
What TOOL is recommended to use for CARDIOVASCULAR risk assessment in HIV?
QRISK2
When should FRACTURE risk assessment be made in people with HIV?
THREE YEARLY if
>50
POST MENOPAUSAL women
other risk factors for OSTEOPOROSIS
What TWO tools is recommended to use for FRACTURE risk assessment in HIV?
1) FRAX
2) QFracture
Asymptomatic patients NOT on ART - how often should they be reviewed if CD4 count <350?
3-6 monthly
Asymptomatic patients NOT on ART - how often should they be reviewed if CD4 count 350-500?
6 monthly
Asymptomatic patients NOT on ART - how often should they be reviewed if CD4 count >500?
6-12 monthly
Asymptomatic patients NOT on ART - if they do not attend an appointment how quickly should they be contacted to re-engage?
TWO weeks
Asymptomatic patients NOT on ART - in addition to CD4 count what other factors might make frequent monitoring preference?
high RISK of STI or viral HEPATITIS
In patients with HIV who are HIGH risk of STI how often should they be offered STI tests?
3 monthly
In patients with HIV who are HIGH risk of hepatitis acquisition, how often should they be offered testing?
ANNUALLY
HBsAg
and
HCV Ab (or RNA if Ab +ve or ALT abnormal)
How often should random lipid profile be performed in PLW HIV?
2 yearly (if previous baseline normal) unless smoker, >40 yrs or >30 BMI
When should random LIPID profile be performed ANNUALLY in PLW HIV?
SMOKER
BMI >30
>40 years old
What bloods test at a minimum should be performed for PLW HIV ANNUALLY?
VIRAL LOAD CD4 FBC RENAL profile LIVER profile Hepatitis B surface Ab (or sAg if non-immune)
STI testing including syphilis serology should be offered to PLW HIV a minimum of annually in which situation?
If CHANGE in PARTNER since last test
When should cardiovascular risk assessment be performed in PLW HIV who are under 40 years old?
SMOKER
DIABETIC
BMI>30
When is cardiovascular risk assessment not required for PLW HIV?
under 40 years and no other risk factory
known CARDIOVASCULAR DISEASE
What vaccine status should be checked annually?
Flu vaccine
Hepatitis B status/sAb level
HPV completion
By what process is HIV thought to increase risk of cardiovascular disease?
PRO-INFLAMMATORY state induced by HIV infection
What is the potential BENEFIT of DEXA in all PLW HIV?
20% more patients with early bone mineral density disorders identified than with scoring tools
Why is DEXA not recommended for all PLW HIV?
Further studies required to assess utility
If choosing to start efavirenz what assessment should be done?
Depression assessment
When assessing cholesterol levels, does this need to be fasting or non-fasting?
NON-FASTING is acceptable (as per NICE)
Who should Qrisk2 not be used to assess CVD risk in?
people with DYSLIPIDAEMIA
people with T2DM
people with CKD
(all have a significant risk anyway and should have specific management to reduce that)
What is the importance of a baseline viral load prior to starting ART?
- REDUCED EFFICACY of some ART if VL >100 000
- RESPONSE to treatment is measured by the fall in viral load
What is the proportion of people with untreated HIV with transmitted drug resistance?
7-19%
What proportion of participants in the START trial had baseline resistance?
4.7%
In what rare circumstance would baseline resistance be repeated before starting ART?
if potential SUPERINFECTION with other strain of HIV