A bag is provided for a medical monitor attachable to a litter. The bag includes a housing satchel, an upper cowl, a harness, and first and second flaps. The upper cowl closes an upper opening through which the satchel receives the monitor. The first flap connects to a front side of the satchel from a bottom edge and secures at a top edge by detachable buttons. The first flap includes a window for viewing the monitor. The second flap connects to the first flap to reversibly cover the window. The harness attaches the satchel to the litter. The satchel further includes a utility pocket connected to the satchel at a bottom edge and flexible for rolling underneath the satchel.