How do you use a student t-Test for a Daphnia magna lab to determine the LD50 of treated and non-treated effluent concentrations over a 1, 24, and 48 hour period? Word
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How do you use a student t-Test for a Daphnia magna lab to determine the LD50 of treated and non-treated effluent concentrations over a 1, 24, and 48 hour period?
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- A 45-year-old man is being treated with oral levofloxacin for urinary tract infection. The plasma clearance of the drug is calculated as 15.0 L/h. Oral bioavailability of the drug is 75%. Sensitivity analysis of a sputum culture shows a minimal inhibitory concentration of 1 µg/mL for the causative pathogen. The target plasma concentration is 2 mg/L. If the drug is administered twice per day. Which of the following dosages should be administered at each dosing interval to maintain a steady state? (A)300 mg (B) 480 mg (C) 520 mg (D) 600 mg (E) 710 mgA patient is prescribed 120 ml of Hartmann’s solution to be given over 5 hours. The microdrip delivers 60 drops/ml. calculate the required drip rate in drops/minA sample from a 65-year-old man was brought tothe lab at 9am from a private clinic. Serumpotassium is 8.5 mmol/L. The test was repeatedand the same result is obtained. All laboratorychecks have been carried out and the result isanalytically valid. The doctor is called via telephoneand he reveals that the sample was taken at 4pmthe previous day by the nurse. a) Comment on the value of potassium obtainedb) What could possibly be the cause for such resultsobtained?c) What course of action would you recommend?
- t /g = (Log Nt – Log N0) /0.301 10 mL of a culture of Enterobacter at 104 cells/mL is introduced into 990 mL of the same broth at the same temperature (37° C) with adequate mixing. It is 8 p.m. the night before class on Tuesday at 11 a.m. Doubling time for this species is 40 minutes. Will the culture reach Stationary Phase before class?A physician orders 1800 mL of lactated Ringer’s solutions to be administered over a 14 hour period. The IV is calibrated to deliver 12gtt/mL. How many drops per minute should the patient receiveGive one(1) alternative testing method for one (1) of the ten parameters tested in a urine reagent strip. Discuss the following: Whether the alternative testing method was made before or after the urine reagent strip Summarized Procedure Causes for False Positives Causes for False Negatives
- A milk sample was tested for the presence of typhimurium. Using a 10 microliter calibrated loop, a sample was taken directly from the milk and plated onto nutrient agar and the following day after incubation 98 colonies were counted. What is the CFU/ml of the S. typhimurium in this sample?In a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria: Enterobacter aerogenes, Pseudomonas aeruginosa, Salmonella typhimurium, and Serratia marcescens?Summary Urine culture count is a semi-quantitative standard test for diagnosing UTI. Selective and differential media (CNA, EMB) are used to detect and screen the major causative agents of UTI. • CNA media select Gram-positive bacteria and differentiate a-, B-, or Y- hemolytic type. • EMB media select Gram-negative bacteria and differentiate lactose fermenter or nonfermenter. Quantitative criteria are used to determine if a urine count indicates an infection or not. >100,000 cells/ml as significant infection • 10,000-100,000 cells/ml as doubtful significance <10,000 cells/ml as negative Questions: Q1: For CNA and EMB media: What type of media? What is the inhibitory agents? Explain and identify three types of hemolysis. Q2: What are the quantitative criteria used for the diagnosis of UTI?
- Prepare the following strength solution: Prepare 250 mL of 1/2 strength tube feeding. The nurse would add mL of water to mL of tube feeding to get 250 mL of 1/2 strength tube feeding solution.this patient suffers from Parkinson’s disease and has been admitted with nausea, confusion and a fall. The most recent blood results and observations are shown below:Sodium – 136mmol/LPotassium – 4.0mmol/LCreatinine – 110micromol/LCRP – 25mg/LBp – 110/78mmHgWhich tests would you expect to be conducted in this patient? List below up to 4 patient issues that you have identified, think about who you would speak to about each of these: What are the typical issues associated with the administration of medication for Parkinson’s disease.You have added 8 mL of Albuterol Sulfate Solution (5mg/mL) and 22 mL of normal saline to your continuous nebulizer with an output of 10 mL/hr. What is the total dosage of the treatment you are giving? How long will this treatment last?