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Which analyte result requires retesting or possibly repeat sample collection?

Please refer to the information in question #78 to answer the following:  The centrifuge tube of urine was heated under running tap water for five minutes. The turbidity cleared. Which of the following caused the turbidity?

Which situation would lower the total serum protein level in a patient?

It is recommended that phlebotomists introduce themselves to patients using the NOD acronym.  What do the letters start for?

Protein: 1+ RBC: 1-3/HPF WBC: 25 – 30/HPF Moderate bacteria 0-1 WBC casts/LPF 1-3 Granular casts/LPF A patient seeks medical advice because of persistent lower back pain. Which clinical condition best correlates with these urinalysis results?

When collecting specimens for a crossmatch, what additional information must appear on the tubes?

Which statement describes the correct use of antiseptics during venipuncture?

Please refer to the information below for questions #82 through #88. A patient is brought to emergency in a semi-conscious state. The results of the laboratory tests are listed below: Sodium = 140 mmol/L Potassium = 7.0 mmol/L Chloride = 98 mmol/L CO2 = 19 mmol/L Glucose = 7.8 mmol/L Urea = 4.2 mmol/L   Osmolality = 320 mmol/kg     What is the anion gap for this set of electrolytes?

Which of the following tests may be adversely affected if the time of collection is not accurately recorded?

When the QC was first run in the morning on multichannel analyzer XYZ, the results on one level of QC appeared erratic for all the analytes with some being outside 3SD and several having R4S violations, the results from the other level of QC appeared to be acceptable. What does this type of error indicate?