A wearable device , comprising: a housing that is securable to a body of a user adjacent a first position of the body; a power source within the housing; a controller within the housing and operably coupled with the power source; and a first sensor operably coupled with the controller and positioned on or in the housing; wherein the controller is configured to: obtain, from the first sensor, a first sensor reading indicative of a first health parameter of the user sensed by the first sensor; determine if the first health parameter satisfies a health threshold; if it is determined that the first health parameter satisfies the health threshold: - cause the user to be prompted to move the housing to a second position on the user's body different from the first position to make a measurement of a second health parameter different from the first health parameter; - initiate the measurement of the second health parameter by the first sensor or a second sensor; and - obtain, from the first sensor or from the second sensor , a second sensor reading indicative of the second health parameter. a housing that is securable to a body of a user adjacent a first position of the body; a power source within the housing; a controller within the housing and operably coupled with the power source; and a first sensor operably coupled with the controller and positioned on or in the housing; wherein the controller is configured to: obtain, from the first sensor, a first sensor reading indicative of a first health parameter of the user sensed by the first sensor; determine if the first health parameter satisfies a health threshold; if it is determined that the first health parameter satisfies the health threshold: - cause the user to be prompted to move the housing to a second position on the user's body different from the first position to make a measurement of a second health parameter different from the first health parameter; - initiate the measurement of the second health parameter by the first sensor or a second sensor; and - obtain, from the first sensor or from the second sensor , a second sensor reading indicative of the second health parameter. obtain, from the first sensor, a first sensor reading indicative of a first health parameter of the user sensed by the first sensor; determine if the first health parameter satisfies a health threshold; if it is determined that the first health parameter satisfies the health threshold: - cause the user to be prompted to move the housing to a second position on the user's body different from the first position to make a measurement of a second health parameter different from the first health parameter; - initiate the measurement of the second health parameter by the first sensor or a second sensor; and - obtain, from the first sensor or from the second sensor , a second sensor reading indicative of the second health parameter. - cause the user to be prompted to move the housing to a second position on the user's body different from the first position to make a measurement of a second health parameter different from the first health parameter; - initiate the measurement of the second health parameter by the first sensor or a second sensor; and - obtain, from the first sensor or from the second sensor , a second sensor reading indicative of the second health parameter. <EOS>