What is polycythemia vera? | Hematologic System Diseases | NCLEX-RN | Khan Academy

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  • čas přidán 30. 06. 2024
  • Learn to recognize the symptoms of polycythemia vera as well as how to diagnosis and treat it. By Raja Narayan. Visit us (www.khanacademy.org/science/he...) for health and medicine content or (www.khanacademy.org/test-prep/...) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Raja Narayan.
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Komentáře • 115

  • @atharareeb
    @atharareeb Před 7 lety +30

    I just discovered your channel and I can't stop watching. It's like a whole new world of information has opened up to me. Your explanations are very vivid and make concepts crystal clear without putting too much pressure on the cortex. Much love.
    And huge thank you.

  • @googleuser9266
    @googleuser9266 Před 7 lety +9

    I SOOOO HAVE TO SHOW THIS TO MY PROFESSOR TOMORROW.... GREAT WORK!! VERY CONFIDENT ABOUT MY TEST TOMORROW!! THANKS SO MUCH...

  • @christinevakas92
    @christinevakas92 Před 21 dnem +1

    Thank you so much - drawing and correct spelling information on the slides helps with clear memory recall. Greatly appreciated.

  • @imvk9861
    @imvk9861 Před 9 lety +10

    well prepared, direct, informative video. As a med student(intern) i didn't expect that. Really good job . hope you keep uploading thanks :)

  • @maryweist-izar9850
    @maryweist-izar9850 Před 8 lety +10

    This is a treasure, thank you!

  • @paulojustinianookubo
    @paulojustinianookubo Před 4 lety +3

    Amazing explanation !! You have the talent to be a teacher !!

  • @uliceacosta2551
    @uliceacosta2551 Před 3 lety +4

    It’s a very very good explanation about PV. Really good video to understand how the disease is set up. What I would suggest is to talk about the main first factor that influences the expression of PV, which is the hypoxia detected by kidneys.

  • @user-tg7ty9qc8d
    @user-tg7ty9qc8d Před 7 lety +1

    Nice & clear illustration.
    Thank you very much .

  • @alijaberi9852
    @alijaberi9852 Před 5 lety +1

    Thanx for very interrsting information about PV !

  • @crazzydaissy7915
    @crazzydaissy7915 Před 7 lety +1

    u make my life alot easier thankuuu khans academy😁😁😉😉😉

  • @assiaaajal4279
    @assiaaajal4279 Před 5 lety +1

    Amazing.. Thank you :))

  • @othoncezar
    @othoncezar Před 8 lety +18

    For treatment, add also Aspirin

  • @ghaithsattout2512
    @ghaithsattout2512 Před 4 lety +2

    Can't thank you enough !

  • @jglezpr
    @jglezpr Před 2 lety +2

    The best informative video I have seen in regards to this subject. Been trying to understand what is PV. Now I need to know what is the JAK2 test. 😂 Thanks

  • @MarcusElliot
    @MarcusElliot Před rokem +1

    Excellent Explanation Video.

  • @tekpacliffrd8372
    @tekpacliffrd8372 Před 6 měsíci +1

    Well explained 😊
    Thanks for your great work 💯

  • @sausalitoindaylesford1260
    @sausalitoindaylesford1260 Před 7 lety +12

    All of the MPNs are rare blood cancers, and have been called Myeloproliferative Neoplasms, as opposed to 'Disorders', since 2008. It would be great for this to all be amended on Khan Academy. Cheers. Otherwise, these are fab videos and I thank you.

  • @jellybeanpower6269
    @jellybeanpower6269 Před 8 lety +27

    I have this disease! It's nice to know a bit more about it :) (PS. The first time my doctor told me about it I felt like a Teenage Mutant Ninja Turtle because of the JAK2-mutation)

    • @leavemealone6100
      @leavemealone6100 Před 7 lety +2

      u can get heart attack or a stroke

    • @natelindsey7778
      @natelindsey7778 Před rokem +2

      How are you doing now?

    • @jellybeanpower6269
      @jellybeanpower6269 Před rokem +3

      @@natelindsey7778 I am doing quite great regarding my polycythemia vera :) ever since I switched to the newest treatment my blood counts have been exceptionally good - like a healthy human! The only problem I have is the remains of when I was untreated, before I could get a diagnose and medication. I suffered a blood clot inside my liver at 15 years because of the thick blood and developed a liver disease. So really, if I only had polycythemia vera and if it was caught earlier I wouldn't have any major problems right now. But my liver is not doing too well and it affects my whole body and I don't think I will be able to bear children in the future, my body just might not be able to handle it. This story went from positive to kinda sad hehe, but i guess it's a disease that can be devastating if not treated.
      I hope you are alright?

    • @natelindsey7778
      @natelindsey7778 Před rokem +1

      @@jellybeanpower6269 I’m glad to hear that you’re doing well from this disease & hope for better outcomes with your liver soon. I was just curious cause I’m only 26 years old & went for a physical and found that my RBC’s, hemoglobin, and hematocrit were barely over the elevated range. I have been pretty worried about potentially having this disease at such a young age

    • @jellybeanpower6269
      @jellybeanpower6269 Před rokem +2

      @@natelindsey7778 the disease normally hits in the 50s but I am living proof that it can happen at any age although it is very rare for younger people to get PV. I am 25 right now and have been living with PV for 10+ years. If you are worried then maybe ask your doctor about it and the quickest way to rule it out is to do a simple blood test to check for the JAK2 mutation. Don't worry yourself too much until then 🫶

  • @TT-ho5xc
    @TT-ho5xc Před 7 lety +2

    very interesting

  • @user-wv7se3ko9x
    @user-wv7se3ko9x Před 4 lety +1

    Oh my goooood you are the best 💕💕💕💕💕💕💕💕💕💕💕

  • @TheYazankooo
    @TheYazankooo Před 8 lety +1

    Thank you sooooooooo much :) ♥

  • @robertshrewsbury2891
    @robertshrewsbury2891 Před 3 lety +5

    I had Polycythemia and had to get a phlebotomy about once a month, because my Hemoglobin was around 55 g/dl and my Doctor ordered it.
    Finally I wondered about people with Anemia that were short of red-blood-cells analogously like an opposite to Polycythemia!
    Then I looked up the foods that people with Anemia do not eat because they are iron blockers.
    Many of these foods are called Oxalate's and absorb Iron. So then I started eating these foods (with Oxalate s) abundantly and after a
    few weeks I had my Hemoglobin checked by my Doctor and my Hemoglobin was down to 16 g/dl and now over a year later my Hemoglobin is still 16 g/dl. That is a drop of 39 g/dl’s in a very short time and it held good. Sometimes just a simple procedures are workable.
    Of course I believe that my mental procedures, meditations & thoughts had something added to this procedure that was synergy related that made it more effective.
    Make it clear that I am not prescribing
    anything to anyone, but expressing my own thoughts and experience.
    However I would recommend that medical personnel investigate this.
    Cordially, Robert Shrewsbury

    • @clarissaespinoza9234
      @clarissaespinoza9234 Před 3 lety +2

      Can you give some examples of foods that you have been eating?
      I just got diagnosed with PV and my doctors haven’t really given me anything to help my symptoms. I’m really frustrated rn because it’s impacting my day to day life.

    • @robertshrewsbury9344
      @robertshrewsbury9344 Před 3 lety +2

      @@clarissaespinoza9234 I lost some files when my hard-drive went bad and do not have these foods available anymore. The way I found them was to put in the phrase (on the web) "foods that anemic people should not eat" and it came up with a big list of foods not to eat because they are iron absorbers, sop my extrapolation was that these foods would absorb enough of my iron to help me and it worked for me.
      It has been two years now and my hemoglobin is still 16 gdl's, instead of 55 gdl's and I was only on these foods for a short time. I uses to use Oxalic acid in my laboratory to take the iron out of ore.
      Good luck
      Robert

    • @mysurfing3550
      @mysurfing3550 Před 3 lety

      I have pv, but have iron decency I'm making a ton of rbc, if I had few Id be anemic, but I just have a ton of "anemic" cells....

    • @robertshrewsbury9344
      @robertshrewsbury9344 Před 3 lety

      @@mysurfing3550 Good luck!

    • @dantheisen35
      @dantheisen35 Před 2 lety

      @Robert Shrewsbury same here

  • @JuicyCharon
    @JuicyCharon Před 6 lety +61

    My Mneumonic for PV = *POLycyTHEMIA V*
    P = Pruritus, Petic ulcer
    O = Osteoporosis
    L = ↑Load on Heart → Hypertrophy and failure
    y
    c
    y
    T = Thrombosis (Stroke, MI, DVT, Hepatic Vein, Retinal Vein)
    H = Hepatosplenomegaly, Hypertension, Headaches
    E = Erythromelalgia (Hand and foot pain)
    M = Myeloproliferative disease
    I = IFN Alpha
    A = Arthritis (Gouty - destruction of Red cells leads to increased release of Uric acid)
    V = ↑Viscosity (Hematocrit ↑), Venesection

  • @danieltschull544
    @danieltschull544 Před 6 lety +3

    Danke

  • @katentropy
    @katentropy Před rokem

    One of the first symptoms of my dad's PRV was an intense, go-to-bed-3-days, allergic reaction to zucchini and melon. Later in the disease he had severe pruritus that was relieved by UVB light therapy. The allergies to these foods never went away. In fact, he ended up getting comprehensive food allergy testing that showed numerous reactions to food and spices, e.g., garlic and ginger. Mom had to sacrifice the spices in her home chef's cooking repertoire.

  • @srshohagh4374
    @srshohagh4374 Před 6 lety

    Awesome

  • @Med_Onc
    @Med_Onc Před 5 lety +6

    2 issues
    #1-mispronounces polycythemia immediately and is reflected in closed captioning
    #2-he points to a “shaft of long bone” when referring to hematopoietic cells, long bones have mostly yellow (fatty marrow), not red marrow which is found in the thick bones (pelvis)

    • @verahealth8045
      @verahealth8045 Před 5 lety +3

      Med_Onc1979 glad someone else noticed this, I was about to call him out for using the shaft of the femur, that clearly has yellow bone marrow in most healthy individuals. If he wanted to use the femur as an example he should of talked about the epiphysis regions, those have red bone marrow.

    • @campingman1942
      @campingman1942 Před 5 lety +3

      And the hip ( lower right side of back/ pelvis ) . is where they did my bone marrow , not legs or arm bones.

  • @teateekg6829
    @teateekg6829 Před 3 lety +3

    Thanks so much for the lesson.
    I'm going to do a PV pathology test next month. 🔮 and see what happens

    • @robertshrewsbury2891
      @robertshrewsbury2891 Před 3 lety

      I had Polycythemia and had to get a phlebotomy about once a month, because my Hemoglobin was around 55 g/dl and my Doctor ordered it. Finally I wondered about people with Anemia that were short of red-blood-cells analogously like an opposite to Polycythemia!
      Then I looked up the foods that people with Anemia do not eat because they are iron blockers.
      Many of these foods are called Oxalates and absorb Iron.
      So then I started eating these foods (with Oxalates) abundantly and after a few weeks I had my Hemoglobin checked by my Doctor and my Hemoglobin was down to 16 g/dl and now over a year later my Hemoglobin is still 16 g/dl. That is a drop of 39 g/dl’s in a very short time and it held good.
      Sometimes just a simple procedures are workable.
      Of course I believe that my mental procedures, meditations & thoughts had something added to this procedure that was synergy related that made it more effective.
      Make it clear that I am not prescribing anything to anyone, but expressing my own thoughts and experience. However I would recommend that medical personnel investigate this.
      Cordially, Robert Shrewsbury

    • @dineshreddy5037
      @dineshreddy5037 Před 3 lety

      @@robertshrewsbury2891 Can you name that foods please:)

    • @robertshrewsbury2891
      @robertshrewsbury2891 Před 3 lety

      ​@@dineshreddy5037 The names of the iron reduction foods are called Oxalates. My hard drive went bad on me and I lost the data on the exact names of these foods. You can get on the web and type in "foods that people with Anemic Anemia should not eat"
      I know one person that diluted Oxalic acid to 6 on the Ph scale and drank it, a spoonful or two per day and it dropped his hemoglobin down for two days at a time and fast.
      He had his blood tested after 3 days and it dropped 20 gdl's so I would be very careful. There is no Doctors in their right minds that would indorse this and I suspect that the Spleen can get overloaded"?? By the way I had another blood test on Jan 26th 2021 (two years after I got well) and my hemoglobin is 15.9 gdl's.
      Keep in mind that I flanked this procedure with a metaphysical/spiritual process where I sent a message to my femurs to stop producing so much iron and reduce it down to 16 gdl's and I focused on my Femurs and repeated this a number of times. This worked for me and I am still experiencing the benefits.
      Cordially, Robert

    • @sugarrayleonard7162
      @sugarrayleonard7162 Před 2 lety

      @@robertshrewsbury2891 bro.I think I had this kind of disease.How are you today? If you dont mind, I would want to get some tips from you to reduce my RBC.

    • @NileshKumar-Dl1wli
      @NileshKumar-Dl1wli Před 2 lety

      @@sugarrayleonard7162 have you done any tests related this disease

  • @JayRazah
    @JayRazah Před 8 měsíci

    Great video.
    Is there any natural food to lower platelets count down?

  • @MichaelsUgly
    @MichaelsUgly Před 7 lety +5

    normal PaO2 and low EPO in polycythemia vera

  • @MichaelsUgly
    @MichaelsUgly Před 7 lety +6

    All myeloprolif disorders have jak2kinase mut Except for chronic myelogenous leukemia, which has philadelphia chromosome 9:22 bcr:abl translocation

  • @robertshrewsbury4241
    @robertshrewsbury4241 Před 2 lety +2

    I had Polycythemia/cancer and my g/dl's was 62 g/dl's instead of 16 and I had to get a pint of blood (Phlebotomy) drained out of me a lot. So I started taking oxalate foods until my hemoglobin was back down to normal at 16 g/dl's Strawberries are good oxalated, but so is rhubarb, but I thought rhubarb was too much Oxalate, so I stuck with strawberries. I am aware that too much oxalic can also be harmful.

  • @EyeintheSky999
    @EyeintheSky999 Před rokem +1

    Like to see an update talk about the drug Jakafi and what it does to the body. By stopping all bone marrow production. It was a hell of a ride for me. You also forgot about low EPO as another marker while not the gold standard definitely needs to be considered in treatment. Blood letting is a double edge sword. Take some out body freaks and send orders to make more blood on top of what is being already made. Then we have the headaches and numbness from blood to thoick to flow into some of the smaller places.

  • @cyndibunnell7479
    @cyndibunnell7479 Před 4 lety

    You need to add Jakafi to the treatment plan.

  • @OriginalChelseaMarie
    @OriginalChelseaMarie Před 7 lety +1

    I love how you emphasize your words, hahah

  • @majadbassam1032
    @majadbassam1032 Před 6 lety

    and why there is thrombtic event??

  • @toukito_
    @toukito_ Před 6 lety +3

    MEGA SPLEEN! MEGA LIVER! the only mega evolutions you don't want lol

    • @darkestnbl
      @darkestnbl Před 6 lety

      mega dick

    • @dantheisen35
      @dantheisen35 Před 2 lety

      Yep. They have checked that and said I didn’t have a enlarged spleen thank goodness

  • @ggg3172
    @ggg3172 Před 4 lety

    rbc is without nucleus the how its causes gout

  • @hilalelgargini1846
    @hilalelgargini1846 Před 6 lety +1

    Can I expect jaundice in polycythemia vera? Since there's there's an excessive destruction of RBCs.

    • @dantheisen35
      @dantheisen35 Před 2 lety

      Jaundice? Dang I hope not but if you read my comment this is what I’ve felt so far good luck 👍

  • @marisamozos5776
    @marisamozos5776 Před 2 lety

    Por favor . Lo pueden po er en Español .?

  • @iqrasalim134
    @iqrasalim134 Před 6 lety +6

    please change the writing style to a simpler one, its hard to read.
    thankyou

  • @Haiderkhan-eg6vh
    @Haiderkhan-eg6vh Před 7 lety

    i had a question why nucleus disapper when RBCS become mechaver

    • @stephenmcwhorter2755
      @stephenmcwhorter2755 Před 4 lety

      The nucleus is expelled when the RBC leaves RBM. The lack of nucleus and biconcave shape allow it is to squeeze through narrow capillaries which are smaller than the 6 - 8 μm of RBC size.

    • @Siomey88
      @Siomey88 Před 3 lety

      @@stephenmcwhorter2755 u are handsome 😚

  • @jerrygawronski965
    @jerrygawronski965 Před 6 lety

    ok

  • @iftikharayoub1892
    @iftikharayoub1892 Před 5 lety

    sir why u called polycythemia r very interesting disorders in the start of lecture

  • @justinaunogwu298
    @justinaunogwu298 Před rokem

    Thank you so much Dr Dagba for curing me of polycythemia vera😭🙏🏼

  • @skarpengland
    @skarpengland Před 5 lety

    Is the Gout, due to increased nucleic acid breakdown, because the increased production of RBC requires more breakdown of nucleic acids? (Since RBC dont have nuclei anymore)

  • @majadbassam1032
    @majadbassam1032 Před 6 lety

    i did not understand whyvthere is hepatomegaly and gout???

  • @nealpaige3907
    @nealpaige3907 Před 7 lety +1

    How high should the RBC be in men to worry about this ?

    • @2001s
      @2001s Před 7 lety

      above 6 milliom

    • @noumanakbar4200
      @noumanakbar4200 Před 6 lety +1

      Hg >18.5 in men and 17.5 in womem

    • @abdullahkhansafi4500
      @abdullahkhansafi4500 Před 4 lety

      Nouman Akbar hi bro

    • @subratbeura9798
      @subratbeura9798 Před 4 lety

      @@noumanakbar4200 my hbis 16.4 hct is 47.2.rbc 5.75. From india age 40 male....is it polycethemia ? Plz guide

    • @Cazanu417
      @Cazanu417 Před 4 lety +1

      @@subratbeura9798 thats normal for male and at 40 is rare

  • @dantheisen35
    @dantheisen35 Před 2 lety +3

    I have polycythemia and was diagnosed like 2 months ago… it’s been getting very hard they’re giving me some kind of medication I can’t pronounce … and they have given me 4 treatments and 4 phlebotomys since the treatments were starting I’ve been feeling pretty bad … very verrrrry tired all the time and dizziness nauseous and extremely horrible headaches the worst symptom I’ve had is reoccurring pretty much every day is a kind of vertigo? I get very dizzy (ears ringing and see spots or whatever and like very close to passing out) when I stand up from laying down or sitting for awhile this and huge headaches they’ve taken out 4 500 milliliters of blood in 4 weeks and they just told me I will have to get a phlebotomy every month until my red blood cells are down. It has gotten better and doctors were afraid of me having a heart attack or stroke from the blood being so thick … and I am not positive yet but it could be secondary polycythemia? I don’t have the jak gene or whatever. Anyway I appreciate your video sharing and I was just trying to share my personal experience with this thank you 🙏

    • @itbelikethat9031
      @itbelikethat9031 Před 2 lety

      What where your numbers like hemoglobin???

    • @fannyalbi9040
      @fannyalbi9040 Před 2 lety

      try nattokinase as some comment it works

    • @babumanu895
      @babumanu895 Před 2 lety

      It takes around 12 - 15 months to stabilise till u become iron deficient and then u may have blood lettings for 3 to 4 months ... Drink 4 litres of water a day minimum

    • @natelindsey7778
      @natelindsey7778 Před rokem

      What’s is your age

  • @googleuser3360
    @googleuser3360 Před 5 lety

    മിന്നാരത്തിലെ ശൊഭനക്ക് വന്നത് ഈ അസുഖമാണ്😓🙁

  • @williamhicks9752
    @williamhicks9752 Před 8 lety

    what does vera mean?

    • @jellybeanpower6269
      @jellybeanpower6269 Před 8 lety +5

      +jedtry LMB It means "true" or "real". That is because Polycythemia (AKA secondary polycythemia vera) is considered "fake" because it is temporary compared to polycythemia vera (primary polycythemia) which is a chronic disease. Polycythemia is caused by outer factors while Polycythemia VERA, like mentioned before in the video, is caused by a mutation in the JAK2-gene. (God I feel so smart, this is unusual)

    • @alijaberi9852
      @alijaberi9852 Před 5 lety

      Very informative Thanks for the share.

  • @syeddshah2710
    @syeddshah2710 Před 4 lety

    My hn level is 19 point .but due to height problem .plz tell me treatment

  • @surendraraidas7167
    @surendraraidas7167 Před 4 lety +1

    sir hindi me samjhao hamari maa ko h polythysemia vera

    • @NileshKumar-Dl1wli
      @NileshKumar-Dl1wli Před 2 lety

      bhai aap ne kaun sa test karaya tha aur ab kaisi hai aapki ma

    • @NileshKumar-Dl1wli
      @NileshKumar-Dl1wli Před 2 lety

      surendra Ji please reply.... main aap ke samaj se hi hu.... please