How Do You Know If Its Respiratory Or Metabolic Acidosis?

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4.2 Respiratory Acidosis - Causes

Acid-Base Physiology The arterial pCO2 is normally maintained at a level of about 40 mmHg by a balance between production of CO2 by the body and its removal by alveolar ventilation. If the inspired gas contains no CO2 then this relationship can be expressed by: paCO2 is proportional to VCO2 / VA where: VCO2 is CO2 production by the body VA is Alveolar ventilation An increase in arterial pCO2 can occur by one of three possible mechanisms: Presence of excess CO2 in the inspired gas Decreased alveolar ventilation Increased production of CO2 by the body CO2 gas can be added to the inspired gas or it may be present because of rebreathing : Anaesthetists are familiar with both these mechanisms. In these situations, hypercapnia can be induced even in the presence of normal alveolar ventilation and normal carbon dioxide production by the body. An adult at rest produces about 200mls of CO2 per minute: this is excreted via the lungs and the arterial pCO2 remains constant. An increased production of CO2 would lead to a respiratory acidosis if ventilation remained constant. The system controlling arterial pCO2 is very efficient (ie rapid and effective) and any increase in pCO2 very promptly re Continue reading >>

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Popular Questions

  1. hmb13

    I'm on Day 7 and feeling like crap. I've had a blazing headache pretty much continuous since Day 2. At first I thought it was due to the caffeine withdrawal, but now that I'm on Day 7, it can't possibly be that. In addition, my head just feels like it's in a fog -- I can't concentrate or focus very well, my energy levels are incredibly low, my mouth feels like cotton and I'm drinking water constantly, and for the past couple days I've started to feel minor chest pains (like someone is squeezing my heart).
    My cousin, who is a nurse, warned me this cleanse might send me into ketosis, which can become acidosis, and both conditions are unhealthy and put stress on the liver. Can someone please explain? Are my symptoms a sign of ketosis or acidosis? I was doing the Whole30 to hopefully change my relationship with food (always an adversarial relationship before -- restriction mentality) and to cleanse my gut from inflammatory foods, but so far it's just making me feel terrible. I had probably a 75% compliant diet before starting Whole30, so this hasn't been a huge shift for me -- what I'm experiencing *isn't* just "carb flu".
    Here's what my typical meals have been:
    -1 cup coffee (black)
    -2 eggs & 2-3 slices of bacon, or 1/2 sweet potato & 2-3 slices bacon, or 1 C. spaghetti squash w/1/3 c. browned ground pork & sauteed sweet peppers (for any of these, I would use 1/2 tsp. or so of coconut oil in the pan)
    -1/2 - 3/4 c. berries & bananas
    -Salad of mixed greens, assorted fresh veggies, 1/2 c. browned ground pork w/homemade balsamic vinagrette
    Afternoon snack
    -Handful of nuts, a piece of fruit, or fresh veggie slices
    **Sometimes I'm so ravenous by the time I get home, I have to have another snack of a hard-boiled egg the minute I walk in the door in order to have enough energy to cook dinner
    I've been cooking a lot of the meals from the WellFed book -- Moroccan Meatballs over spaghetti squash with cumin carrots on the side, or Salmon a l'Afrique du Nord with Brussels Sprouts. Last night I had grilled lamb & veggie kabobs.
    I've also been taking fermented cod liver oil supplements every day (I'm Vit D deficient).
    Can someone please help? Do I just need to stick it out a while longer, or am I doing something wrong? I'm becoming ineffective at work between this constant headache and the low energy levels. My cousin is begging me to at least eat gluten-free oats or white rice so I get some energy that is more easily available to my brain.
    Help before I give this up completely!

  2. Robin Strathdee

    First question: Do you exercise? If you do, there's no way your carb intake is enough to support your activity levels. If you don't, you could possibly be okay, but if you're used to a higher carb intake then your body is probably freaking out. I would suggest making sure you have a starchy carb at every meal and see if that helps your energy levels smooth out. The Whole30 is not intended to be a specifically low carb program, and from what I understand ketosis and ketoacidosis come from an extreme absence of carbohydrate in the diet (I'll check in with Melissa for confirmation).
    Second question: Could you be coming down with an illness? It's really common for all the changes in your body during a Whole30 to temporarily lower your defenses and make you a little more susceptible to nasty little bugs.
    I'm going to pass this question on to Melissa, too, in case she has anything to add.

  3. Emily

    I agree with your cousin that you need more carbs, but get them from sweet potatoes, spaghetti squash, acorn squash, butternut squash, pumpkin (I love this time of year) instead of grains. And hang in there- you are right in the toughest part.

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