A 1:1000 dilution of 1mM NaCl would give: 100µM 1µM 1nM 10µM 1M 100mM 1mM 100nM 10mM

An IV medication is ordered as a bolus of 20 mg over 2 minutes. The vial contains 50 mg/mL. How many milliliters should be administered to achieve this dosage?

Fill in the blank with metric prefixes (not abbreviations): 103 seconds: 1 blank gram

Label three sets of eight microfuge tubes (1-8) and add the volumes of BSA stock solution (2 mg/ml) and water to each labeled tube as indicated in Table 3. Be sure to calculate, and enter, the values for column 4 of this table. Table 3 STD Curve Volume BSA Volume Water (µl) Final BSA Concentration tube (mg/ml) Stock (ul) number 1 100 2 95 3 10 90 4 20 80 5 40 60 6 60 40 7 80 20 100 00

125 mg of solid drug is placed in solution. Over time the drug dissolves. The amount of undissolved drug in mg was monitored as a function of time in minutes. The data was graphed with the following results: Amount of drug remaining vs. time: best fit is y = -11.4x + 125 R2 = 0.990 ln(Amount of drug remaining) vs. time: best fit is y = -0.114x + 4.84 R2 = 0.976  How much drug (in mg) remains after 5 minutes?

1 Nortriptyline is available in a liquid containing 10mg/5mL. A child requires 90mg. What volume should you administer? Please give your answer as a whole number

A sample to be used for medical imaging is labeled with 18F,which has a half-life of 110 min. What percentage of the originalactivity in the sample remains after 300 min?

An IV infusion is to contain 40 mEq of potassium ion and 10 mEq of sodium ion in 500 mL of D5W.Using a 20% w/v potassium chloride injection (MW 74.5, valence of 1) and 0.45% sodium chlorideinjection (MW 58.5, valence of 1), how many milliliters of each should be added to the 500mL bag ofD5W to supply the required ions?

A patient is to receive Tazidine by intramuscular injection.  A 10.0-mL vial contains 1 gram of dry powder that was reconstituted with 3 mL of sterile water.  The reconstituted solution contains 340 milligrams Tazidine in 1.00 mL of volume.  How much solution should be injected if a patient needs to receive a 0.30 gram dose?  Enter the numerical part of the answer in the first box (using correct significant figures) and the correct unit in the second box.

Would it be more difficult to meet a 70 ppb one hour averaged standard or 70 ppb 8-hr averaged standard and why?