What are the applications of precision urine bags in clinical diagnosis
Precision urine bags have the characteristics of correct measurement, convenient sample collection, and intuitive disease monitoring in clinical diagnosis. They are mainly used in the following scenarios:
1、 Urine volume monitoring and renal function assessment
1. Monitoring of renal function in critically ill patients
Suitable for ICU patients, postoperative patients or those with renal dysfunction, real-time recording of hourly urine volume through precision scales (usually accurate to 10-50ml) can assist in determining renal perfusion and filtration function.
For example, if a shock patient's urine output continues to be less than 0.5ml/(kg · h), it may indicate pre renal oliguria and require adjustment of fluid replacement or vasoactive drugs.
2. Evaluation of diuretic efficacy
After using diuretics in patients with heart failure and edema, dynamically observe changes in urine volume to determine whether the drug dosage is reasonable.
For example, if there is no significant increase in urine volume within 2 hours after intravenous injection, the medication regimen may need to be adjusted.
2、 Urine sample collection and testing
1. Quantitatively collect 24-hour urine samples
The precision urine bag can accurately mark the volume, making it convenient for medical staff to collect the total 24-hour urine volume for detecting indicators such as urine protein, urine electrolytes, creatinine clearance rate, etc.
For example, patients with nephrotic syndrome need to assess the severity of their condition through 24-hour urine protein quantification.
2. Collection of special inspection samples
Used for collecting special specimens such as mid stream urine and clean urine, to avoid testing errors caused by contamination of the opening of ordinary urine bags.
For example, patients with urinary tract infections need to collect urine through precision urine bags for bacterial culture.
3、 Diagnosis of neurogenic bladder and urinary dysfunction
1. Auxiliary measurement of residual urine volume in the bladder
In conjunction with ultrasound or cystoscopy examination, the patient uses a precision urine bag to record the residual urine volume produced by catheterization or bladder puncture after urination, and evaluate bladder emptying function (normal residual urine volume<50ml).
Commonly seen in patients with neurogenic bladder such as spinal cord injury and multiple sclerosis.
2. Preparation before urodynamic examination
Before conducting tests such as urine flow rate and bladder pressure volume measurement, the bladder capacity is correctly controlled through precision urine bags to ensure the accuracy of the examination data.
4、 Correct monitoring of children and special populations
1. Assessment of urine output in newborns and infants
For newborns with light weight and low urine output (normal urine output is about 1-3ml/(kg · h)), the small scale design of the precision urine bag can accurately record the urine volume per milliliter, early detection of dehydration or renal dysfunction.
For example, if the urine output of premature infants is less than 0.5ml/(kg · h) for 2 hours, they should be alert to acute kidney injury.
2. Nursing monitoring of patients with consciousness disorders or coma
For patients who cannot urinate independently or cooperate, continuous monitoring of urine volume and color changes through precision urine bags can timely detect abnormalities such as hematuria and chyluria, providing clues for the diagnosis of the primary disease.