Hello Awesomites! :D
Thursday, November 26, 2020
Thursday, November 19, 2020
When should you start sodium bicarbonate in CKD patients? Mnemonic
When should you start sodium bicarbonate in CKD patients?
Monday, November 16, 2020
Neurology examination template
Hi everyone!
Here is my template for documenting the basic bare minimum neurology examination.
Saturday, November 7, 2020
It's a Carny Problem
Carney's Triad - ENCHONDROMA + PARAADRENAL GANGLIOMA + GIST
Carney's Syndrome - multiple benign tumors, mainly of heart and skin
Carney Stratakis Syndrome - Pediatric GIST (Gastrointestinal Stromal Tumor)
Friday, November 6, 2020
Blood Donation
BLOOD DONATION
PRE-DONATION
HISTORY:
- Men can donate safely once every three months while women can donate every four months
- Age between 18 and 60 years
- The donor should be in a healthy state of mind and body
- Past one year - not been treated for Rabies or received Hepatitis B immune globulin
- Past six months - not had a tattoo, ear or skin piercing or acupuncture, not received blood or blood products, no serious illness or major surgery, no contact with a person with hepatitis or yellow jaundice.
- Past three months - not donated blood or been treated for Malaria
- Past one month - had any immunizations
- Past 72 hours - had dental work or taken Aspirin
- Past 48 hours - taken any antibiotics or any other medications (Allopathic or Ayurveda or Siddha or Homeopathy)
- Past 24 hours - taken alcoholic beverages
- Presently - not suffering from cough, influenza or sore throat, the common cold
- Women should not be pregnant or breastfeeding her child or menstruating.
- No diabetes, chest pain, heart disease or high BP, cancer, blood clotting problem or blood disease, unexplained fever weight loss, fatigue, night sweats, enlarged lymph nodes in armpits, neck or groin, white patches in the mouth, etc.
- No history of TB, bronchial asthma or allergic disorder, liver disease, kidney disease, fits or fainting, blue or purple spots on the skin or mucous membranes, received human pituitary - growth hormones, etc.
EXAMINATION:
- Temperature - Normal (oral temperature not exceeding 37.50 C)
- Pulse - between 50 and 100/minute with no irregularities
- Blood Pressure -Systolic 100-180 mm Hg and Diastolic 50 - 100 mm Hg
- Bodyweight - not less than 45 Kg
- Hemoglobin - not less than 12.5 g/dL-
Procedure to measure Hb using CuSO4:
i) Massage the finger to be pricked (preferably ring finger)
ii) Disinfect it
iii) Prick using disposable needle/ lancet
iv) Put the drop of blood in CuSO4 containing beaker
v) If the blood drop sinks, Hb is more than 12.5, hence the person can donate blood (provided no other contraindication).
PROCEDURE:
- Identify donor and label blood collection bag and test tubes
- Ask the donor to state their full name
- Ensure that:
- the blood collection bag is of the correct type;
- the labels on the blood collection bag and all its satellite bags, sample tubes and donor records have the correct patient name and number;
- the information on the labels matches with the donor's information
- Select a large, firm vein, preferably in the antecubital fossa, from an area free from skin lesions or scars
- Clean the site of venepuncture by alcohol and let it dry
- Perform phlebotomy using a 16-gauge needle, which is usually attached to the blood collection bag. Use of a retractable needle or safety needle with a needle cover is preferred if available, but all should be cut off at the end of the procedure.
- Ask the donor to open and close the fist slowly every 10–12 seconds during collection
- Remove the tourniquet when the blood flow is established or after 2 minutes, whichever comes first
- Ask the patient to squeeze a ball intermittently during the procedure
- Monitor the donor and the donated unit
- Remove the needle and collect samples
- Cut off the needle using a sterile pair of scissors
- Collect blood samples for laboratory testing
POST-PROCEDURE:
DONOR CARE:
- ask the donor to remain in the chair and relax for a few minutes
- inspect the venepuncture site; if it is not bleeding, apply a bandage to the site; if it is bleeding, apply further pressure
- ask the donor to sit up slowly and ask how the person is feeling
- before the donor leaves the donation room, ensure that the person can stand up without dizziness and without a drop in blood pressure
- offer the donor some refreshments
BLOOD UNIT AND SAMPLES:
- Transfer the blood unit to a proper storage container according to the blood center requirements and the product
- Ensure that collected blood samples are stored and delivered to the laboratory with completed documentation, at the recommended temperature, and in a leakproof, closed container
REFERENCES:
http://naco.gov.in/blood-transfusion-services-publications
Written by our guest authors HARSH JOGI and AYUSHI GUPTA
Tuesday, November 3, 2020
Ascitic Tap
Requirements
Written informed consent, Betadine, Spirit, Sterile gloves, Sterile drapes, a 1.5-3.5 cm 20-22 G needle, a 5-20mL syringe is used, 18-20 G needle attached to a non-collapsible tube (can be made by breaking drip chamber of an IV set and putting one end of it in an empty water bottle for therapeutic tap tubing to a sterile collection bag)
Procedure:
1. Follow universal precautions.
2. Skin around the site of puncture to be disinfected with betadine or Chlorhexidine and spirit and draped with sterile drapes.
3. Position: The patient should be in supine position( can be asked to roll slightly to left)
4. Site: a) At the junction of medial two-third and lateral one-third of the line join umbilicus and left Anterior superior iliac spine (left side is preferred over right to avoid damage to caecum)
OR
b) 4 inches above iliac crest, whichever is more dependent
Site has to be lateral to rectus muscle. Avoid areas of scar.
5. Local Anaesthesia:
a) Skin, subcutaneous tissue, abdominal wall layers up to parietal peritoneum to be anesthetized with 2% lidocaine filled syringe using a 22-25 G needle.The needle is advanced into the subcutaneous tissue aspirating every 2-3 mm prior to injecting.
b) Once a loss of resistance is felt and peritoneal fluid is drawn into the syringe, it indicates that we have entered the peritoneal cavity. Additional lidocaine is then injected to anesthetize the pain-sensitive parietal
peritoneum.
(A total of approx. 4-5 ml lidocaine is adequate.)
c) The needle is then withdrawn.
6. Puncture:
For diagnostic tap – a 1.5-3.5 cm 20-22 G needle attached to a 5-20mL syringe
is used.
Technique – The aim is to prevent leak by ensuring the skin puncture site is
not directly over the puncture site into the peritoneal cavity.
Z track technique – Pull skin about 2 cm downward before puncturing
skin→ then leave the skin after entering few mm so as to form a Z
OR
prick the skin, go for some distance in the subcutaneous plane and then change the angle to vertically downwards to enter the peritoneal cavity.
For therapeutic tap - A large bore 1.5-2 cm 16-18 G needle is used instead.The syringe is detached and the needle is attached to a non-collapsible rubber tubing.The ascites fluid is drained slowly through the rubber tubing connected to the needle into a sterile collection bag.
7. Seal : After the puncture, the punctured skin is sealed with a tincture benzoin
seal.
8. Post procedures: T.P.R, B.P to be recorded half hourly and the
patient should not be given feeds for the next 4 hours. If there is pain, analgesics may be given.
- Mitali shroff
Monday, November 2, 2020
USMLE STEP 1: Resources and preparation
USMLE STEP 1: RESOURCES AND PREPARATION
1.1 MAIN RESOURCES
These two resources are inevitable for Step 1 preparation.
First Aid for Step 1
Uworld question bank
UWSAs and NBMEs
SUPPLEMENTAL RESOURCES:
Kaplan videos (subject wise)
Boards and Beyond videos
Sketchy videos for microbiology and pharmacology
Pathoma videos and notes for pathology
UW biostats review for biostatistics
BRS books for behavioral science.
Conrad Fischer’s 100 cases for ethics
FLASHCARDS
ANKI
SUPPLEMENTAL Q-BANKS
Amboss
Kaplan
USMLE Rx
1.2 HOW TO USE THESE RESOURCES
1. FIRST AID
Read FA 3-4 times, from cover to cover.
FA provides every single concept in brief. You may need supplemental resources and videos in order to understand these concepts, but once you do, the final high yield topic is mentioned in FA.
Consider it the most concise version of take away points of all subjects.
Read a section/ topic/ subject/ system from first aid, and always solve MCQs simultaneously for reinforcement.
If you find it difficult to understand a particular subject, supplement it with videos at that time.
EG: I started reading biochemistry from first aid and couldn’t grasp the concept. What do I do?
Watch Kaplan videos (or BNB or any other resource) for biochemistry.
Annotate important points from the videos into my FA.
Read the same sub-topic from FA simultaneously.
Finally, when I have a good grasp of the concept, I will solve only biochemistry MCQs from UW (or any other q-bank)
This way, I have consolidated learning biochemistry by using FA, UW and videos to understand the concept
If you work well with flashcards, I will make my own flashcards using ANKI or used pre-formed flashcards from ANKI for intermittent learning.
2. UWORLD
This is a question bank which has various options for subscription. Understand that you will need this q-bank until the date of your exam, so either take a 6 month or 1-year subscription.
This needs to be done TWICE. Period.
MODES
1. Timed: You get 60 minutes to solve 40 questions (You cannot read the explanation until you have finished the whole block)
2. Tutor: No limit on solving questions. (You can exceed 60 minutes for 40 questions)
3. Timed-tutor: You will be timed, but there will be an option of “show answer”, which will give you the explanation right away after you have marked an answer and clicked on it.
FIRST PASS: Use timed-tutor mode.
Always use timed mode as it will help you overcome the time issues in the final exam, especially if you are within 6 months of your exam date.
If you have just begun and are using uworld to solve questions along with your first reading of FA, you may prefer using the tutor mode.
Make sure to annotate extra information from UW into your FA. FA does not have enough space, so get it spiral binded and add pages within or make an extra notebook.
If you are not comfortable writing so much extra information into FA and prefer flashcards, make flashcards in UW of all the info which is not mentioned in FA.
Remember, in the end UW and FA will be your final resources during your dedicated phase, so you need all information consolidated at one place.
How to make flashcards: Keep all the tables and flowcharts under one deck. Make separate decks according to subjects. Make a deck of super volatile concepts and concepts not mentioned in FA.
SECOND PASS: Use timed mode
Timed mode will help you prepare for your test.
Reset UW again and start from scratch in the 2nd pass. Alternatively, if you don’t have enough time, solve your incorrect and marked questions only.
Keep revising a few pages of FA daily.
3. SKETCHY MICRO
If you are a visual learner, this is an amazing tool. It will help you to remember these bugs till your Step 3 exam as well.
Keep revising the pictures at regular intervals as it is easy to forget them.
If it gets too much, just focus on sketchy for viruses and fungi.
Do sketchy for VIRUSES and keep your FA open. Read from both places and learn simultaneously. Sketchy really helps with virology.
4. PATHOMA
Go through the videos and annotate in FA.
Solve MCQs after finishing each sub-topic
5. BNB VIDEOS and KAPLAN VIDEOS
These are needed during the early part of your prep to understand the concepts.
Keep FA open and annotate important points from the videos or make your own notes in a separate notebook.
Don’t underestimate their importance in building your base in these concepts as they will help you with Step 2 and Step 3 as well.
AMBOSS Q-BANK
Use this in the end. After you have gone through UW twice and still want additional practice, use Amboss.
They have tougher questions, so don’t get discouraged.
No need to annotate information unless it seems high yield.
Use it to practice as many questions.
UWSAs AND NBMEs (ASSESSMENTS)
These are assessments which give you a score at the end. They may or may not be able to predict your final score, so use them to see how much improvement is needed, but do not rely on them blindly.
Take an online NBME or UWSA1 after the first pass of UW (which would coincide with at least the 2nd or 3rd reading of FA)
Find out your weaknesses. See videos, re-learn FA, solve UW incorrects to improve upon those weak areas.
When you are within 3 months of your step 1 date, start taking assessments every 10-15 days.
Leave NBME 18 and UWSA 2 for the last one month as they are ‘considered’ to be predictive.
1.3 TIMELINE ( MOST IMPORTANT, NEEDS TO BE INDIVIDUALIZED)
In the descending order:
Dedicated Study Period: Last 2-3 months (8-10 hours per day)
Final revision of FA
UW incorrects
Amboss questions for practice
Assessments every 15 days
Pre-dedicated period: 2-3 months (4-8 hours per day)
2nd and 3rd revision of FA
Start UW with annotation in FA/ make separate notes/ make flashcards of high yield points not mentioned in FA
Take an assessment (NBME or UWSA1) and see your weakness. Go through supplementary material for those weak areas (videos, other books)
Initial Phase: 4-6 months (4-8 hours per day)
1st reading of FA
Videos and text for establishing basic concepts
Solving any q-bank for practice and reinforcement
Annotating important points
Written by Amrin Kharawala
Subscribe to:
Posts (Atom)