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Doctor insights on: Lasix Elevated Creatinine

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My 48 year old husband has had swollen ankles for the past 3 days. Heart is good, creatinine fine, no urinalysis done. On Lasix (furosemide) trial. Suggestions?

My 48 year old husband has had swollen ankles for the past 3 days.  Heart is good, creatinine fine, no urinalysis done. On Lasix (furosemide) trial. Suggestions?

More info: First I would do urinalysis, kidney issues can cause swelling. Next, what meds is he on? Any new ones? Amlodipine (norvasc) is a common one that when added or increased can cause swelling, as well as other meds. ...Read more

Dr. Jan Tillisch
402 doctors shared insights

Furosemide (Definition)

Furosemide is a potent diuretic which increases dramatically urine output in most patients. It is most frequently used in patients who are fluid overloaded such as in congestive heart failure. Potassium , sodium and magnesium can be lost in excess with the use of Furosemide and must be closely monitored. It is much stronger than other diuretics used for ...Read more


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CKD CHF patient on fluid 1L restriction BUN 53, Creatinine 2, going worse when on lasix (furosemide). At what BUN am I too dehydrated/cause for high BUN/C ratio?

CKD CHF patient on fluid 1L restriction BUN 53, Creatinine 2, going worse when on lasix (furosemide). At what BUN am I too dehydrated/cause for high BUN/C ratio?

Bun/creatinin ratio: Greater than 20 in the absence of GI bleeding usually indicate intra vascular volume depletion. If no peripheral edema discuss need for fluid restrictions with your doctor ...Read more

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Bun creatinine high taking lasix 60 3 days week zaroxolyn (metolazone) 5 mg had chf in march, have afib on heart meds too. Help?

Bun creatinine high taking lasix 60 3 days week zaroxolyn (metolazone) 5 mg had chf in march, have afib on heart meds too. Help?

Labs: The increase in your creatinine can be dye to many reason. HF itself can cause abnormal kidney function. Excessive use of Lasix (furosemide) also can make things worse. Suggest you see a kidney doc soon and seek input. Testing is needed including a urine test and a detailed history and exam. Best of luck ...Read more

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Chf patient under 1L water intake a day, BUN level 63, creatinine 2.0 on lasix 40 mg maintenance dosage. Should water intake be increased a little so the kidneys don't conserve water? Asking because of decreased urination wirh stable GFR. Check Adh?

Chf patient under 1L water intake a day, BUN level 63, creatinine 2.0 on lasix 40 mg maintenance dosage. Should water intake be increased a little so the kidneys don't conserve water? Asking because of decreased urination wirh stable GFR. Check Adh?

CHF/ renal disease: This question is best asked to you cardiologist, as you have CHF and kidney damage so your fluid balance is very delicate. Drinking too much can put you back in CHF. Would recheck your creatinine and your creatinine clearence, EF on echocardiogram as it may have changed. Discuss this with your cardiologist ...Read more

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Can I take lisinopril, amlodipine, and furosemide for high creatinine and protein in urine, while i also have high uric acid levels?

Can I take lisinopril, amlodipine, and furosemide for high creatinine and protein in urine, while i also have high uric acid levels?

Meds for proteinuria: Lisinopril (l) is an excellent drug for reducing proteinuria (p) and blood pressure control. With a high creatinine, you need to be under the care of a nephrologist (n) to make sure you can preserve your kidney function as long as possible. You also need to have a 24-hour urine collection to assess your kidney function and to see how much p you have. An n can also help with your uric acid problem. ...Read more

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How do I come off of Lasix (furosemide)?

How do I come off of Lasix (furosemide)?

Lasix (furosemide): The first step is to discuss coming off Lasix (furosemide) with your doctor. The next step is follow the course you and the doc have agreed on. ...Read more

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What does it mean if Lasix (furosemide) doesn't work?

Several possibilites: If your kidney function is normal, it means you're not fluid overloaded. If you have swelling, it doesn't mean that Lasix (furosemide) will fix it — many forms of swelling are not due to volume overload. If you have kidney disease, it could mean that the dose is inadequate — that's why it should only be given under the supervision of a doctor. Rarely, Lasix (furosemide) is not properly absorbed. ...Read more

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What could happen if I take 240mg of Lasix (furosemide) all at once?

What could happen if I take 240mg of Lasix (furosemide) all at once?

Lasix (furosemide): This is a large dose which we would use only in unusual circumstance. The effect would depend on the patient's physiology. In an otherwise normal patient a large diuresis could be expected and possibly side effects such as ringing in the ears or hearing loss. In someone for whom the dose was appropriate we'd expect less diuresis and perhaps less in side effects. The answer is not simple ...Read more

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Do you have to taper lasix (furosemide)?

Do you have to taper lasix (furosemide)?

No: Loop diuretics including furosemide (=lasix) can be stopped without tapering it. ...Read more

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Why would I urinate as I'm walking uncontrollably while taking lasix?

Why would I urinate as I'm walking uncontrollably while taking lasix?

Greater volume urine: First of all the Lasix makes more urine, hence your bladder fill up quickly. From here there could be two possibilities: 1- you may have over active bladder and you cannot control the urine when the urge to urinate strikes. Hence, with Lasix due to large volume of urine the urine leaks out witout your control. 2- underlying stress urinary incontinence (leakage upon coughing) gets worse. ...Read more

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I took 80mg of Lasix (furosemide) and did not urinate, should I be concerned?

I took 80mg of Lasix (furosemide) and did not urinate, should I be concerned?

Maybe: What is your kidney function? The response of the kidney to lasix (furosemide) is complex and depends on getting lassie into your blood, then it is bound to albumin and delivered by a complex mechanism to the site where it works. Many factors affect the response of the kidney. You medications reflect you have PPH, and sounds like right side HF. You may not respond because your kidney is sensing pre-renal. ...Read more

Dr. Tony Ho Dr. Ho
1 doctor agreed:
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Does Lasix (furosemide) causes hypernatremia?

Dr. Tony Ho Dr. Ho
1 doctor agreed:

Usually, no: Lasix (furosemide) causes sodium wasting, so it classically causes a hyponatremia. ...Read more

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Will taking Lasix (furosemide) lead to dehydration?

Will taking Lasix (furosemide) lead to dehydration?

Possibly: Lasix (furosemide) is a drug meant to remove excess fluid and sodium from the body. If too much is taken, or intake drops substantially it can cause dehydration. ...Read more

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How does lasix (furosemide) for low urine output help?

How does lasix (furosemide) for low urine output help?

Depends on cause.: Lasix (furosemide)'s a medicine / poison that tricks the kidneys into losing urine while the drug is around. It can damage the kidneys if urine production is shut down as a defense mechanism. However, if the kidney is shutting down because it's not getting enough blood (because the heart is too overburdened with fluid to pump effectively) then Lasix (furosemide) will be helpful in unloading excess fluid & helping the hear ...Read more

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What all can be the side effects of lasix (furosemide)?

See below: Side effects include electrolyte disturbances like low sodium, low pottassium. It can also lead to dehydration if not carefully dosed. Rarely allergic reactions occur like any other medications. ...Read more

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Should nonpitting edema be treated with lasix (furosemide)?

Edema: We use furosemide(lasix)to treat excess fluid and increase the renal excretion of water/electrolyte. Sometimes nonpitting edema is still due to fluid overload and Lasix may be appropriate. The cause of the edema is the indicator for what treatment is needed. ...Read more

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Can Lasix (furosemide) and metalazone be taken at the same time?

Can Lasix (furosemide) and metalazone be taken at the same time?

Diuretic combo: Yes, both can be taken at the same time. Lasix (furosemide) is a loop diuretic and can be used in combination with Metolazone to deliver a greater diuresis than Lasix (furosemide) gives by its self. You should have your doctor test the patient for other causes of leg edema, such as varicose veins or pulmonary artery hypertension to make sure the edema is being treated appropriately, good luck. ...Read more

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Would Lasix cause my detrol (tolterodine) la not work as effectively?

Would Lasix cause my detrol (tolterodine) la not work as effectively?

Yes and No: Detrol (tolterodine) decreases the number of voids that the bladder does. Lasix causes more urine output which increases the number of voids that the bladder does. Lasix does not however interfere with Detrol (tolterodine) directly, that I know of. ...Read more

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What else can you do for edema when Lasix (furosemide) does not work?

Edema: Edema has various causes, the treatment needs to be aimed at the cause. Lasix (furosemide) treats some parts of edema spectrum but isn't always effective. Discuss with your doctor. ...Read more

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What do doctors do if Lasix (furosemide) is not pulling fluid off the body?

Diuresis: First we have to know why the diuretic is needed. If it is indicated, the kidneys have to be good enough to respond, there has to be adequate protein components in the blood, there has to be enough blood pressure going to the kidney. If the data suggests the diuretic should work we work the dose up, sometimes we require a combination of diuretics. Sometimes we have to do dialysis to remove fluid. ...Read more

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What are the statistics of death rate of elderly people on lasix (furosemide)?

Don't think it known: Just being on Lasix (furosemide) doesn't necessarily care a risk of death. This medication is used for many purposes. Some patients on this are severely and critically ill and some not so very ill. I don't think you will find any statistics as you posed your question. Perhaps a different question is answerable. ...Read more

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If my Lasix (furosemide) was decreased from daily to every other day and i now have a cough then should I increase it or be concerned?

Concerned: It would be best to be concerned and contact your doctor about what to do. While you are on Lasix (furosemide) you should follow your weight daily and particularly if your weight is up you may need to increase the dose again. It's best to talk it over with your doctor. ...Read more

Dr. Madhu Kandarpa
2,220 doctors shared insights

Creatinine (Definition)

Creatinine is a byproduct of creatine phosphate, which is present in muscles. Creatinine levels increase if the ...Read more


Dr. Heidi Fowler
208 doctors shared insights

Lasix (Definition)

Lasix is a loop affecting water pill/diuretic which is a kind of water pill or diuretic (heart ...Read more