Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


ECF and plasma tonicity

Low Plasma [Na] and low plasma Osm Check urine osmolarity
Cause of pseudohyponatremia? high triglycerides, high protein
low urine osmolality (<100) with hyponatremia psychogenic polydipsia
high urine osmolality (>100) with hyponatremia def. in renal dilution (ABNL high ADH)
Causes of euvolemic hyponatremia? SIADH! GC def., hypothyroidism, drugs, tumor
low ECF with hyponatremia VOL. DEPL: Diarrhea, diuretics, MC def.
NL ECF with hyponatremia edematous disorders
hypertonic challenge with hypoVOL water loss - diarrhea/vomiting; skin loss; kidney (osm. diur.)
euvolemic hypertonicity pure water loss - DI (central/nephrogenic)
hypervolemic hypertonicity iatrogenic (hypertonic solutions); salty foods
correcting hyponatremia concentration raised at the rate that it falls; Rapid correction - no more than 12 mEq/L/24hr
hyponatremia correction EQUATION Na/hr = <delta>[Na]/hr x TBW
hypernatremia correction SLOWLY: half-correction in 24hr period TBW(present)*[Na](present) = TBW(nl) * [Na](nl)
Created by: MATTADOR
Popular Clinical Skills sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards