Using the principles of standard precautions, the nurse would wear gloves in what nursing interventions? A. Providing a back massage B. Feeding a client C. Providing hair care D. Providing oral hygiene
D. Providing oral hygiene. Standard Precautions apply to 1) blood; 2) all body fluids, secretions, and excretions, except sweat, regardless of whether or not they contain visible blood; 3) non-intact skin; and 4) mucous membranes. Standard precautions are designed to reduce the risk of transmission of microorganisms from both recognized and unrecognized sources of infection in hospitals. Standard precautions includes the use of: hand washing, appropriate personal protective equipment such as gloves, gowns, masks, whenever touching or exposure to patients' body fluids is anticipated.
Describe the feedback regulation that would be activated in a patient by pressing on the outside of the baroreceptor in as much detail as possible addressing how that feedback response occurs. Focus on the sympathetic limb of the response.
Pressing on the outside of the baroreceptor would decrease the stretch on that structure. The decrease in frequency of action potentials to the Medulla (message is telling the medulla that BP decreased even though it did not) would lead to an increase in output from the sympathetic NS through the cardioaccelerator and vasomotor centers. The increase in sympathetic activity from the cardioaccelerator would increase the slope of the pacemaker cells thereby decreasing time between cardiac cycles (increase HR). At the same time, the increase in sympathetic activity will also impact the ventricular myocytes causing a greater influx of Ca++ and thereby an increase in force of contraction, which would eject more blood during each cardiac cycle (increase stroke volume). The increases in sympathetic activity from the vasomotor center would result in an increased release of norepinephrine onto arterioles thereby causing them to constrict and increase TPR. The increase in total peripheral resistance (TPR) , stroke volume (SV), and heart rate (HR) would all cause BP to be elevated.
How would an amino acid get across a plasma membrane? a. Channel protein b. Carrier protein c. Synthesis d. Phagocytosis
B. Carrier protein- due to the size of the amino acid, it would be too big to pass through a channel protein without assistance. Therefore, the amino acid would need to use carrier protein to pass through the plasma membrane. Carrier proteins adjust their shape/configuration to allow for transport of materials in and out of the cell.