Which of the following conditions are associated with oversecretion of rennin?
A. Alzheimer's disease
B. Hypertension
C. Diabetes mellitus
D. Diabetes insipidus
B
Renin is secreted when special cells in the DCT, called the macula densa, sense changes in blood volume and pressure. When the macula densa cells sense that blood volume is low, blood pres-sure is low, or blood sodium levels are low, renin is secreted. Renin then converts angiotensino-gen into angiotensin I. This leads to a series of reactions that cause the secretion of the hormone aldosterone. This hormone increases kidney reabsorption of sodium and water, increasing blood pressure, blood volume, and blood sodium levels. Inappropriate or excessive renin secretion is a major cause of persistent hypertension.
You might also like to view...
An older patient with arthritis is prescribed to begin an exercise regimen. How should the nurse instruct the patient about exercising?
1. Perform resistive exercises daily with weights. 2. Perform active range of motion to all joints every day. 3. Overstretch all muscle groups for 20 minutes each day. 4. Use high intensity when performing isometric exercises.
When educating a client on a lifestyle change, it is important to teach them which of the following?
1. Keep focused on the final product. 2. Make small changes rather than big ones. 3. Look for immediate results. 4. Failure is not an option.
The nursing intervention of highest priority relative to alcohol withdrawal delirium is:
a. application of restraints. b. reorientation of the patient to reality. c. identification of existing social supports. d. maintenance of fluid and electrolyte balance.
Which scenario should the nurse follow up on as a potential indication of intimate partner violence?
A) The partner of a pregnant woman attends each of her appointments. The partner is friendly and outgoing. Each time the nurse asks the patient a question, the partner answers. While the partner speaks, the patient looks at her lap. B) The partner of a pregnant woman attends each of her appointments. The partner is friendly and outgoing. Each time the nurse asks the patient a question the partner tries to answer. When the partner speaks, the patient interrupts and answers the question herself. The partner listens to the answer. C) The partner of a pregnant woman attends an ultrasound appointment. The partner is friendly and outgoing. When the technician reveals the patient's belly to apply the electrodes, the partner comments that the patient is really fat. The patient pulls at the partner's shirt and says the partner is fat too. They both laugh. D) The partner of a pregnant woman attends an ultrasound appointment. The partner is friendly and outgoing. The nurse notices bruises on the patient's upper arms and says they look sore. The patient says she's getting so big she keeps bumping into things. She maintains good eye contact with the nurse as she explains.