Diabetes insipidus is a condition in which the individual produces large amounts of urine. The volume of urine produced by a patient who has diabetes insipidus, was recorded each day. On certain days, the patient was given an injection of pituitary extract. The results of the study are recorded in Table 1. TABLE 1 Day Volume of urine/dm3 1 5.4 2 6.0 3 5.8 4 5.0 5 7.0 6 5.7 7* 1.9 8 2.2 9 6.3 10 4.9 11 5.1 12 5.5 13* 1.5 14* 2.1 15* 2.4 16* 1.7 N.B. The asterisks indicate the days on which the patient was given the pituitary extract. (i)What effect does the pituitary extract have on the volume of urine produced each day? (ii)State the name of the substance that is responsible for this effect? (iii)Describe how this effect is brought about?

Diabetes insipidus is a condition in which the individual produces large amounts of urine. The volume of urine produced by a patient who has diabetes insipidus, was recorded each day. On certain days, the patient was given an injection of pituitary extract. The results of the study are recorded in Table 1. TABLE 1 Day Volume of urine/dm3 1 5.4 2 6.0 3 5.8 4 5.0 5 7.0 6 5.7 7* 1.9 8 2.2 9 6.3 10 4.9 11 5.1 12 5.5 13* 1.5 14* 2.1 15* 2.4 16* 1.7 N.B. The asterisks indicate the days on which the patient was given the pituitary extract. (i)What effect does the pituitary extract have on the volume of urine produced each day? (ii)State the name of the substance that is responsible for this effect? (iii)Describe how this effect is brought about?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter14: The Urinary System

Section: Chapter Questions

Problem 9RE

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Diabetes insipidus is a condition in which the individual produces large amounts of urine. The volume of urine produced by a patient who has diabetes insipidus, was recorded each day. On certain days the patient was given an injection of pituitary extract. The results of the study are recorded in Table 1. TABLE 1 Day Volume of urine/dm 1 5.4 2 6.0 5.8 4 5.0 7.0 5.7 7* 1.9 8 2.2 6.3 10 4.9 11 5.1 12 5.5 13* 1.5 14* 2.1 15* 2.4 16* 1.7 N.B. The asterisks indicate the days on which the patient was given the pituitary extract. What effect does the pituitary extract have on the volume of urine produced each day? State the name of the substance that is responsible for this effect? Describe how this effect is brought about?
(b) Diabetes insipidus is a condition in which the individual produces large amounts of urine. The volume of urine produced by a patient who has diabetes insipidus, was recorded each day. On certain days the patient was given an injection of pituitary extract. The results of the study are recorded in Table 1." TABLE 1 Day Volume of urine/dm 1 5.4 2 6.0 3 5.8 4 5.0 5 7.0 5.7 7* 1.9 8 2.2 9 6.3 10 4.9 11 5.1 12 5.5 13* 1.5 14* 2.1 15* 2.4 16* 1.7 N.B. The asterisks indicate the days on which the patient was given the pituitary extract. i) What effect does the pituitary extract have on the volume of urine produced each day? ii) State the name of the substance that is responsible for this effect? iii) Describe how this effect is brought about?
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Use the following information to answer the next question. Patient Glucose in Urine (mmol/L) Urine Output (mL/day) A 0.0 1 550 B 0.3 4 300 C 1.0 6 000 D 0.0 8 100 Which row represents the urine glucose level of a normal patient and the urine volume of a patient with untreated diabetes insipidus, respectively? Select one: a. A and C b. A and D c. B and C d. B and D
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JH was diagnosed with hyperkalemia and ordered IV fluids. The IV fluids she was given contained calcium gluconate and insulin. Her potassium levels were monitored over a 24-hour period and were as summarized in Table 2. Table 2. JH potassium concentrations post-IV fluids (blood). Time (hours) Measured plasma K+ (in mM) 0 8.0 3 7.1 6 6.4 9 5.9 12 5.6 15 5.3 18 5.1 21 5.0 24 5.0 Using Table 2, which shows the patient’s plasma K+ concentrations over a 24-hour period, graph the changes of K+ over time. Make sure to include an appropriate figure caption to explain what you have observed and follow scientific best practices for creating your graph. Based on the data provided to you within this case, postulate as to why JH experienced more cardiac vs neuronal symptoms.
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