3. In a normal frequency distribution of serum sodium concentrations, the mean is 141 mEq/L and the standard deviation is 3.2 mEq/L. Which of the following most closely represents thepercentage of values in the interval between 137.8 mEq/L and 144.2 mEq/L?A) 25%B) 50%C) 65%D) 95%E) 99%

The mean concentration is 141mEq/l. The standard deviation is 3.2 mEq/l. So ( mean - 1 SD )= 141 -…

Answered: 3. In a normal frequency distribution…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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23. If a healthy person is given an infusion of hypertonic saline (3% NaCl), which of the following findings in plasma is most likely? OA) Plasma [ADH(vasopressin)] pg/mL 10 B) 5-E 0- DK 300 C 280 290 Plasma osmolality (mOsmol/L) O Control before infusion C) B 310 D) OE)
39. An investigator is conducting a clinical study of the effects of ADH (vasopressin) on whole body fluid balance. The plan is to produce increased circulating concentrations of ADH Following a 5% change from baseline, which of the following will be the most effective physiologic stimulus for increasing ADH secretion in this study? OA) Decrease in blood pressure OB) Decrease in blood volume OC) Increase in serum osmolality OD) Increase in fluid intake OE) Increase in hematocrit
7. A physician asks her assistant to prepare an injection of 0.5 mL of 10 mg/mL cortisone solution in a syringe. The assistant has a bottle of 40 mg/mL cortisone stock solution and a bottle of isotonic saline solution to dilute it with (note: not distilled water). Calculate: a) the volume of cortisone stock solution (in mL), and b) the volume of saline solution needed to make this injection solution.
What is the patient's creatinine clearance given the following data? Serum creatinine 0.6 mg/dL Urine creatinine 102 mg/dL 24 hr urine volume 1650 mL Patient's BSA 1.93 m2 1) 195 mL/min 2) 130 mg/dL 3) 93 mL/min 4) 175 mL/min no references, just homework
1.8 Which of the following is likely to cause the kidney to change the reabsorption of water and/or NaCl? Select one: a. Drinking 1 L of water in a short period of time. (Assume that you weren't dehydrated.) b. Eating a big bag of salty potato chips. c. Forgetting to drink water all day. d. Exercising vigorously in a very hot environment. e. All of the above
36. A 3-month-old boy is brought to the emergency department because of a 2-day history of lethargy. Physical examination shows no other abnormalities. The results of laboratory studies are shown: Serum Na+ 165 mEq/L (N=139-146) CI- 130 mEq/L (N=95-105) 334 mOsmol/kg H₂O (N=282-295) Osmolality Urine 1.001 Specific gravity Osmolality 117 mOsmol/kg H₂O (N>200) He is admitted to the hospital. His urine output is increased. His serum ADH (vasopressin) concentration is 24 pg/mL (N=1-5); aldosterone and renin concentrations are within the reference ranges. The urine osmolality remains unchanged after administration of 1-deamino-8-arginine vasopressin. An MRI of the brain and pituitary gland shows no abnormalities. Ultrasonography shows normal kidneys. The most likely underlying cause of the findings in this patient is a defect in which of the following? A) Angiotensin-converting enzyme B) Aquaporin C) 11a-Hydroxylase D) Renin E) Vasopressin receptors
40. Which of the following lettered curves in the graph shown best illustrates the renal handling of inulin? O A) 150- 15 100- 50- B A Filtered load remaining in tubular lumen (%) 200- 0+ OB) Proximal Loop of tubule Henle O C) Distal tubule HL Urine OD) O E)
28. Know the following equation by memory and be able to calculate NFP when given numbers for each of the variables. Practice using the problem below. Net filtration pressure Capillary Hydrostatic Pressure Colloid Osmotic Pressure NFP CHP - OP a. Calculate the NFP if the capillary hydrostatic pressure = 30 mm Hg and osmotic pressure = 17 mm Hg. NFP = -
Order: 1000 mL D5 1/2NS IV to run over 12 hoursa) ML/hr b) Macrodrip (15 gtt/mL) c) Microdrip (60 gtt/mL)
What is a normal Hb value for an adult woman? a) 36 - 46% b) 12.0 - 16.0 g / dL c) 5.0 - 12.0 g / dL d) 45 - 52% e) 16.0 - 20.0 g / dL
Which of the following is a thiazide diuretic? A) Lidocaine B) HCTZ C) Warfarin D) Gabapentin Which of the following is a contraindication to Lidocaine? A) Lidocaine allergy B) Hypernatremia C) Nausea D) Tremors 1- Your patient has a chronic history of congestive heart failure and does not currently have pulmonary edema. Why is administration of a beta blocker beneficial to this patient? A) Beta blockers may help reduce the risk of blood clotting B) Beta blocker administration is not beneficial to this group C) Because beta blocker manufacturers pay you a lot of money to administer them D) Beta blockers minimize the risk of hypertrophic heart disease 2. If the patient in #1 had pulmonary edema, why could beta blocker administration be detrimental? A) The blood pressure could be lowered B) More fluid would back up into the lungs C) It would increase risk of blood clotting D) Beta blocker administration is indicated in this patient Which of the following is a sodium channel…
12. The graph shows values of arterial plasma bicarbonate concentration and pH for different persons. Line X gives the combination of HCO and pH found at a Pco, of 40 mm Hg. Line Y gives the values of pH and HCO3-found when the Pco, of a normal blood sample is varied. Which of the following labeled points on the graph indicates metabolic alkalosis? A) PLASMA (HCO3-) mM/L 40 35 30 25 20 15 10 0 7.0 X B) we E 7.5 D 7.2 7.3 7.6 7.7 pH OF ARTERIAL PLASMA (C) OD) 7.8 7.9 OE)

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3. In a normal frequency distribution of serum sodium concentrations, the mean is 141 mEq/L and the standard deviation is 3.2 mEq/L. Which of the following most closely represents the percentage of values in the interval between 137.8 mEq/L and 144.2 mEq/L? A) 25% B) 50% C) 65% D) 95% E) 99%